Mathematics and Statistics

Notice of Graduate Seminar: Introduction to Adaptive Boost

UNB

Posted: August 15, 2019 10:00:00 AM ADT

Category: Seminars and Colloquia


Tianyi Xia (UNB) | Tuesday, August 27, 2019 at 10:30 AM | Tilley Hall, Room 404 ]  Finding a strong learner with high prediction accuracy is a hard task in machine learning [...] 

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Notice of Graduate Seminar: Bradley-Terry Model for paired preference

UNB

Posted: August 12, 2019 1:00:00 PM ADT

Category: Seminars and Colloquia


Md. Ashiqul Haque (UNB) | Tuesday, August 20, 2019 at 10:30 AM | Tilley Hall, Room 404 ]  Prioritizing is a common problem in many situations where the target is to make decision on preferring an item from a set of similar items [...] 

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Notice of Graduate Seminar:The Inviscid Burgers' Equation and Shockwave Solutions Thereof

UNB

Posted: July 23, 2019 8:00:00 AM ADT

Category: Seminars and Colloquia


The inviscid Burgers' equation is a seemingly simple nonlinear partial differential equation [...] 

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Notice of Graduate Seminar: Meta Analysis of Observational Studies with Moderators

UNB

Posted: June 25, 2019 3:00:00 PM ADT

Category: Seminars and Colloquia


Md. Ashiqul Haque (UNB) | Wednesday, July 3, 2019 at 10:30 AM | Tilley Hall, Room 404 ]  Systematic reviews make attempt to summarise the results from original studies within a given field [...] 

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Notice of Graduate Seminar: Intraguild Predation

UNB

Posted: June 11, 2019 9:00:00 AM ADT

Category: Seminars and Colloquia


Sana Jahedi (UNB) | Thursday, June 13, 2019 at 10:30 AM | Tilley Hall, Room 5 ]  Species interactions are important drivers of community structure in eco- logical systems [...] 

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Notice of Graduate Seminar: Introduction to Causal Inference

UNB

Posted: May 10, 2019 2:40:00 PM ADT

Category: Seminars and Colloquia


 Jingyu (Sabrina) Cui (UNB) | Tuesday, May 14, 2019 at 10:30 AM | Tilley Hall, Room 404 ]  Knowing the reason why something happens is very important [...] 

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Notice of Graduate Seminar: Markov Chain Monte Carlo - Metropolis–Hastings Algorithm

UNB

Posted: May 3, 2019 10:35:00 AM ADT

Category: Seminars and Colloquia


Zheng (Frank) Fu (UNB) | Tuesday, May 3, 2019 at 11:30 AM | Tilley Hall, Room 404 ]  In the 20th century, Metropolis algorithm was one of the most influential algorithms for the development and practice of science and engineering [...]

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Notice of Graduate Seminar: Farkas' Lemma

UNB

Posted: April 25, 2019 10:00:00 AM ADT

Category: Seminars and Colloquia


Naghmeh Shahverdi (UNB) | Tuesday, April 30, 2019 at 1:00 PM | Tilley Hall, Room 404 ]  Farkas’ lemma is a solvability theorem for a finite system of linear inequalities, first published in 1902 by the Hungarian mathematician Gyula Farkas [...]

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Notice of Graduate Seminar: Qualitative Analysis of a Spruce Budworm Outbreak Model

UNB

Posted: March 25, 2019 3:00:00 PM ADT

Category: Seminars and Colloquia


Juping Ji (UNB) | Thursday, April 4, 2019 at 3:30 PM | Tilley Hall, Room 5 ]  The spruce budworm is a native insect that severely damages forest in Canada, especially, eastern Canada [...] 

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Notice of Colloquium: Today’s Practice of Applied Statistics in Health Research: A Very Slow Algorithm and How to Speed it Up

UNB

Posted: March 12, 2019 8:30:00 AM ADT

Category: Seminars and Colloquia


Dr. Daniel Dutton (Dalhousie University) | Thursday, March 14, 2019 at 3:30 PM | Tilley Hall, Room 224 ]  This colloquium will focus on the current practice of statistical analysis in health research using large, publicly available datasets; the Canadian Community Health Survey will be our case study[...] 

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Notice of Graduate Seminar: Bogdanov-Takens Bifurcation

UNB

Posted: February 26, 2019 10:00:00 AM AST

Category: Seminars and Colloquia


Sana Jahedi (UNB) | Thursday, February 28, 2019 at 2:30 PM | Carleton Hall, Room 106 ]  Bifurcation theory is the study of qualitative changes in the structure of dynamical system as parameters vary [...] 

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Notice of Graduate Seminar: Locally Weighted Scatterplot Smoothing—Lowess

UNB

Posted: January 11, 2019 2:40:00 PM AST

Category: Seminars and Colloquia


 Jingyu (Sabrina) Cui (UNB) | Thursday, January 17, 2019 at 11:30 AM | Tilley Hall, Room 224 ]  The relationship between variables, sometime, cannot be clearly shown in the scatterplot, due to noise or other reasons [...] 

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Notice of Graduate Seminar: A Joint Model for Count and Semi-continuous Longitudinal Data

UNB

Posted: December 4, 2018 10:00:00 AM AST

Category: Seminars and Colloquia


 Alex Snow (UNB) | Thursday, December 6, 2018 at 11:30 AM | Tilley Hall, Room 125 ]  Different types of outcomes are frequently collected over time in various studies [...] 

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Notice of Graduate Seminar: Vector Spaces and Algebras Over the Quaternions

UNB

Posted: November 28, 2018 9:00:00 AM AST

Category: Seminars and Colloquia


 Elham Ghamari (UNB) | Tuesday, November 29, 2018 at 11:30 AM | Tilley Hall, Room 125 ]  Linear algebra and functional analysis typically involve vector spaces over the real numbers or complex numbers [...] 

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Notice of Graduate Seminar: Asymptotics of Speed In Large Drift

UNB

Posted: November 8, 2018 10:00:00 AM AST

Category: Seminars and Colloquia


 Sana Jahedi (UNB) | Tuesday, November 20, 2018 at 11:30 AM | Tilley Hall, Room 205 ]  A pulsating traveling front is a solution to a reaction-diffusion-drift equation in a periodic domain with underlying periodic diffusion and velocity field [...]

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Notice of Graduate Seminar: Data Cleaning and Wrangling: Introducing the Steps Between Data Collection and Analysis

UNB

Posted: November 8, 2018 10:00:00 AM AST

Category: Seminars and Colloquia


 Jacob Morehouse (UNB) | Tuesday, November 13, 2018 at 11:30 AM | Tilley Hall, Room 124 ]  The prospect of working with unruly raw data is discomforting for many statisticians and data analysts [...] 

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Notice of Graduate Seminar: The Schwinger Effect and Cosmic Reheating

UNB

Posted: October 30, 2018 4:00:00 PM ADT

Category: Seminars and Colloquia


 Robert Santacruz (UNB) | Thursday, November 15, 2018 at 11:30 AM | Tilley Hall, Room 125 ]  Under the influence of external and time-dependent backgrounds, particles can be produced from the quantum vacuum [...]

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Notice of Colloquium: Experiencing the world through the language of math: snippets of prose and a plea for new words How control-theoretic advances are changing our paradigms in biomedical engineering and where limitations in math are holding us back

UNB

Posted: October 25, 2018 12:00:00 AM ADT

Category: Seminars and Colloquia


[Dr. Jon Sensinger (UNB) | Thursday, November 1, 2018 at 3:30 PM | Tilley Hall, Room 304] Engineers often use math to create new solutions to important applications [...]

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Notice of Colloquium: What can Physics in 5 Dimensions teach us about Strong Interactions?

UNB

Posted: October 16, 2018 12:00:00 AM ADT

Category: Seminars and Colloquia


[Dr. Pervez Hoobhoy (Quaid-I-Azam University) | Tuesday, October 16, 2018 at 1:00 PM | Physics Building, Room 203] Twenty years ago, Maldacena demonstrated the equivalence of string theory in 10-dimensions with a certain quantum field theory in 4-D [...]

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Notice of Graduate Seminar: A Comparison of Model-Based and Algorithmic Methods for Data Analysis

UNB

Posted: October 1, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Department Colloquium: Splitting of Abelian varieties

UNB

Posted: September 25, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Asymptotics of Principal Eigenvalues in Large Drift

UNB

Posted: August 24, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


Additional information on this talk can be found here.

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Notice of Graduate Seminar: The Components and Usage of Generalized Linear Models

UNB

Posted: August 2, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Guest Seminar: On some non-commutative Banach-Stone theorems

UNB

Posted: July 23, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Quadratic Reciprocity Theorem

UNB

Posted: June 19, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: A Nested Frailty Model for Bivariate Recurrent Events: A Poisson Modelling Approach

UNB

Posted: June 12, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: The McKay Quiver of Sn

UNB

Posted: May 8, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Frobenius Reciprocity

UNB

Posted: April 30, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: An Introduction to Nonlinear, Nonparametric Regression

UNB

Posted: April 20, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Wave Function of the Universe

UNB

Posted: April 13, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Introduction to Logistic Regression

UNB

Posted: April 12, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Dispersal Redistribution Approximation in a Patchy Landscape

UNB

Posted: April 10, 2018 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Colloquium: The composition of the earth's mantle and workable solutions to chemical diffusion equations: two (of the many) reasons why earth scientists need a Math Learning Centre

UNB

Posted: February 15, 2018 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Detecting Equivalence Principle Violations with a Quantum Cavity

UNB

Posted: February 9, 2018 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Seminar: Nonlinear Least Squares: Case of the Exponential Curve

UNB

Posted: February 9, 2018 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Hierarchical Clustering

UNB

Posted: January 31, 2018 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Introduction to Structural Equation Modeling

UNB

Posted: January 26, 2018 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Young Diagrams and The Hook Formula

UNB

Posted: January 22, 2018 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Introduction to Nonlinear Regression

UNB

Posted: January 15, 2018 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: The Kruskal-Wallis Rank-Sum Test

UNB

Posted: November 30, 2017 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Algorithms for Highly Symmetric Linear and Integer Programs

UNB

Posted: November 23, 2017 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Toric Quiver Varieties

UNB

Posted: November 23, 2017 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: An Approximation Method for Solving an Eigenvalue Problem

UNB

Posted: November 21, 2017 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Discrete subgroups of Rn

UNB

Posted: November 14, 2017 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Affine Schemes

UNB

Posted: October 25, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Dept Colloquium: Cosmological Implications of the Group Field Theory Approach to Quantum Gravity

UNB

Posted: October 18, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Dept Colloquium: Bifurcation delay and the entry-exit relation

UNB

Posted: October 11, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Dept Colloquium: Kernels for Non commutative Projective Schemes

UNB

Posted: October 11, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Dept Colloquium: Modeling the trade-off between transmissibility and contact in infectious disease dynamics

UNB

Posted: October 11, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Dept Colloquium:The Impact of Virus Mutation in Chikungunya Transmission: A Mathematical Modeling Analysis

UNB

Posted: October 11, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Tree-Based Method for Classification and Regression

UNB

Posted: September 13, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: An Introduction to Parametric Survival Analysis

UNB

Posted: August 28, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Oral Examination

UNB

Posted: May 18, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Dispersal kernels and dispersive differential equations

UNB

Posted: April 25, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Invariance of Maxwell's Equations under the Conformal Group

UNB

Posted: April 18, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Analysis and Applied Math Seminar: Background Cosmological Evolution in CDM models

UNB

Posted: April 3, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Oral Examination

UNB

Posted: April 3, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Analysis and Applied Math Seminar: A brief introduction to short-time Fourier analysis

UNB

Posted: March 27, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Analysis and Applied Math Seminar: Formation, bifurcations and switches of flocking in a two-agent flock with processing delay

UNB

Posted: March 27, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Analysis and Applied Math Seminar: Modelling the spread of organisms with a sessile stage and interesting dispersal behaviours

UNB

Posted: March 27, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Analysis and Applied Math Seminar: The Failure of Huygens' Principle in Certain Higher Derivative Models fo Gravity

UNB

Posted: March 27, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: The Theory of Transformation Groups and the Structure of Manifolds

UNB

Posted: March 20, 2017 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Colloquium: Nonlinear evolutions in a KPP reaction

UNB

Posted: January 12, 2017 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: The Effect of Dispersal Patterns on Stream Populations

UNB

Posted: December 22, 2016 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Colloquium: The Lyapunov's functions of some epidemic models of control with vaccine: Case of Tuberculosis and Polio

UNB

Posted: December 13, 2016 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Colloquium: Towards a sheaf cohomology theory for C*-algebras

UNB

Posted: December 13, 2016 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: The Unruh Effect

UNB

Posted: November 15, 2016 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Colloquium: The (noncommutative) differential geometry of discrete (non-)Abelian groups

UNB

Posted: November 14, 2016 4:00:00 AM AST

Category: Seminars and Colloquia


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Oral Examination

UNB

Posted: October 27, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Witt Rings

UNB

Posted: August 23, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Seminar: Kernel Density Estimation

UNB

Posted: August 23, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Seminar: Tobit Model

UNB

Posted: August 23, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Report Defence and Examination

UNB

Posted: August 23, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Handling Missing Data

UNB

Posted: July 19, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Varieties and Hilbert's Nullstellensatz

UNB

Posted: May 20, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: A Brief Introduction to Generating Functions

UNB

Posted: May 19, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Report Defence and Examination

UNB

Posted: May 17, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Catalan Numbers and Tamari Lattices

UNB

Posted: April 6, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Kriging

UNB

Posted: April 6, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Bootstrap

UNB

Posted: March 14, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Seminar: Contributions of demography and effect of stochastic dispersal to the invasion of the green crab along the northwest coast of the Atlantic

UNB

Posted: March 14, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Seminar: Piecewise models of virus-immune system fro treating HIV patients

UNB

Posted: March 14, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Seminar: Twin Pharmacokinetic Models: Identical Appearance but Different Steady-State Volume of Distribution

UNB

Posted: March 14, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Seminar: Will Wolbachia mosquito releasing help to control the transmission of dengue fever?

UNB

Posted: March 14, 2016 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Conformal Gravity and Cosmological Evolution of the Universe

UNB

Posted: February 4, 2016 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Structure of Finitely Generated Abelian Groups and Rational Canonical Form

UNB

Posted: February 4, 2016 4:00:00 AM AST

Category: Seminars and Colloquia


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UNB Physics Colloquium: Time, Vacuum Energy, and the Cosmological Constant

UNB

Posted: December 1, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: A Proof of Euler's Theorem for Polytope

UNB

Posted: November 27, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Math-Physics Colloquium: The Separability Problem and Its Variants in Entanglement Theory

UNB

Posted: November 26, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Pure Mathematics Seminar Clifford Algebras

UNB

Posted: November 26, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: How Do Neurons Get Excited? [The FitzHugh-Nagumo Model]

UNB

Posted: November 13, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: The Coefficients of the Characteristic Polynomial of a Graph

UNB

Posted: October 14, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: The Coefficients of the Characteristic Polynomial

UNB

Posted: September 28, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Seminar: Global Dimensions of Endomorphism Rings for Invariant Rings

UNB

Posted: September 28, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Colloquium: Classical Invariants of Polarized Varieties

UNB

Posted: September 22, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Ridge Regression

UNB

Posted: September 15, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Report Oral Examination: Mathematical Models of Malaria Control with Artificial Feeders, Odorants and Bed Nets

UNB

Posted: August 31, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Geometry Algebra Seminar: Convex polytopes, tilings, and flag orbits

UNB

Posted: August 21, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Freedman Paradox: The Appearance of an Explanatory Power

UNB

Posted: July 20, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Colloquium: Non-ignorable missing data and measurement errors in semiparametric nonlinear mixed-effects models with the application in HIV viral data

UNB

Posted: July 9, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Colloquium: The Stokes Groupoids

UNB

Posted: May 13, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: The Variogram: Estimating Spatial Variability and Spatial Correlaton

UNB

Posted: May 13, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Tweedie Mixed Models for Spatial Areal Data

UNB

Posted: May 13, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Seminar: Cones of Hilbert Functions

UNB

Posted: April 27, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: The Trichotomy Theorem: Toward a Classification of Finite-Dimensional Algebras

UNB

Posted: April 22, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Colloquium: Nonegative Polynomials and Sums of Squares

UNB

Posted: April 20, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Colloquium: What is a non-commutative desingularization?

UNB

Posted: April 20, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Resolution of Singularities of Toric Varieties

UNB

Posted: April 16, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Gravity as a Yang-Mills Theory

UNB

Posted: April 8, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Colloquium There and back again from the Borsuk-Ulam theorem to quantum spaces

UNB

Posted: April 1, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Cluster Algebras

UNB

Posted: April 1, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Honours Thesis Presentation An introduction to Deep Learning

UNB

Posted: April 1, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Honours Thesis Presentation The Sporadic Simple Group M24

UNB

Posted: April 1, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Hamiltonian Dynamics of Spacetime

UNB

Posted: March 19, 2015 5:00:00 AM ADT

Category: Seminars and Colloquia


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Notice of Colloquium: Global stability of a time-delayed multi-group SIS epidemic model with Nonlinear incidence rates and patch structure

UNB

Posted: February 16, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Colloquium: Strong Scarring and Closed Geodesics

UNB

Posted: February 16, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Beta Regression

UNB

Posted: February 12, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Colloquium: Why the Fuss?

UNB

Posted: February 3, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Honours Student Seminar: Neural Networks, from a computational point of view

UNB

Posted: February 3, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Nonlinear Regression

UNB

Posted: January 29, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Differential Geometry and Matrix Analysis

UNB

Posted: January 12, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Linear Regression Diagnostics

UNB

Posted: January 6, 2015 4:00:00 AM AST

Category: Seminars and Colloquia


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Notice of Graduate Seminar: Differential Geometry and Matrix Analysis

UNB

Posted: December 23, 2014 4:00:00 AM AST

Category: Seminars and Colloquia


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Report Oral Examination: The Sine-Gordon Equation and its Application to Black Holes

UNB

Posted: December 23, 2014 4:00:00 AM AST

Category: Seminars and Colloquia


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Graduate Seminar: Morse Theory

UNB

Posted: December 11, 2014 4:00:00 AM AST

Category: Seminars and Colloquia


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Graduate Seminar: Bogdanov-Takens Bifurcation

UNB

Posted: December 5, 2014 4:00:00 AM AST

Category: Seminars and Colloquia


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Colloquium: Reversible Jump MCMC algorithm for the GEV model with covariates

UNB

Posted: November 18, 2014 4:00:00 AM AST

Category: Seminars and Colloquia


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Math-Phys Colloquium: String Theory Approach to Non-equilibrium Dynamics of Strongly Coupled Systems

UNB

Posted: November 7, 2014 4:00:00 AM AST

Category: Seminars and Colloquia


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Seminar: Discrete Equidecomposability and Ehrhart Theory

UNB

Posted: November 7, 2014 4:00:00 AM AST

Category: Seminars and Colloquia


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Grad Seminar: After the Big Bang: Polymer Inflation

UNB

Posted: October 31, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Grad Seminar: Functional Response

UNB

Posted: October 21, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Grad Seminar: Numerical Solution of the Sine Gordon Equation

UNB

Posted: October 14, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Colloquium: The Calm before the Storm: Spruce Budworm as a case study for understanding the dynamics of insect epidemics

UNB

Posted: October 6, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Grad Seminar: Is the Survival of a Rat Independent of Its Brain Tumor Size in this Experiment ?

UNB

Posted: October 6, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Seminar: Evolution of quantum field, particle content and the classicality in the three stage universe

UNB

Posted: September 23, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Colloquium: Black holes - up close and personal

UNB

Posted: September 16, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Seminar: Computing Global Dimensions of Endomorphism Rings

UNB

Posted: September 9, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Colloquium: Homoclinic Solutions of the Coupled Nonlinear Discrete Systems

UNB

Posted: August 12, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Seminar: Computing Global Dimensions of Endomorphism Rings

UNB

Posted: July 30, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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PhD Defense: Dynamics of Intraguild Predation Models

UNB

Posted: July 8, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Colloquium: The Universal Enveloping Algebra of the Virasoro Algebra is not Noetherian

UNB

Posted: June 17, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Grad Seminar: Isogenies of Elliptic Curves

UNB

Posted: April 17, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Grad seminar: An Introduction to Black Holes and Perturbation Theory

UNB

Posted: April 15, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Colloquium: Primordial black holes and spontaneous dimensional reduction

UNB

Posted: April 14, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


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Honours Thesis Presentations

UNB

Posted: April 10, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


Honours Thesis Presentations by J.P Simard, "Characteristic codes for nonlinear wave equations" (Supervisor: Sanjeev Seahra)  Paul Holloway, "P- adic numbers" (Supervisor: Colin Ingalls) Josh Koncovy, "Elliptic Curves over Finite Fields" (Supervisor: Colin Ingalls) Wednesday, April 16, 2014 at 9:30 am Tilley Hall Room 404 These students and their supervisors welcome you to presentations describing their honours projects (Math 4100). Each presentation will be about half an hour,...

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Colloquium: Where the truth lies: evaluating the scientific content of multiscale models in the physical sciences and engineering

UNB

Posted: April 9, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


Colloquium  Where the truth lies: evaluating the scientific content of multiscale models in the physical sciences and engineering Jeffrey Picka (University of New Brunswick) Tuesday, April 15, 2014 at 3:30 pm Tilley Hall Room 404 When modelling the climate, a flowing powder, or the emergence of unexpected patterns arising from complex chemical reaction dynamics, it is necessary to construct the model on a much smaller scale than the scale of the phenomenon of interest. For the model to...

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Science Colloquium: Scientific computation applied to classical and quantum problems

UNB

Posted: April 4, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


Science Colloquium 2014: Scientific computation applied to classical and quantum problems Thursday, April 10 at 3:30 p.m., Dineen Auditorium (Head Hall C13) Computer-assisted drug design Dr Ghislain Deslongchamps Department of Chemistry, UNB Fredericton Computers are revolutionizing how drugs are developed in the pharmaceutical industry. Modern molecular modelling in conjunction with new strategies for drug design promises to accelerate the typical 15 year-long development...

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Colloquium: Quasilinear Systems of PDEs: Hamiltonian structures and integrability

UNB

Posted: March 24, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


Colloquium Quasilinear Systems of PDEs: Hamiltonian structures and integrability Patrick Reynolds (University of New Brunswick) Thursday, April 3, 2014 at 3:30 pm Tilley Hall Room 5 This talk will focus on two questions concerning quasilinear systems of PDEs (also known as systems of hydrodynamic type): under what conditions are they Hamiltonian, and under what conditions are they integrable? We’ll see how such conditions can be formulated in terms of geometric objects on...

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Grad Seminar: Latin Squares

UNB

Posted: March 24, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


Graduate Seminar Latin Squares Larisa Tamjidi (UNB) Thursday, March 27, 2014 at 3:30 pm Tilley Hall Room 5 Latin Squares techniques have been used in many statistical applications. In this talk I introduce the mathematical properties of Latin squares, concept of orthogonally of Latin squares and complete set of mutually orthogonal Latin squares. A Latin square of order n is an n by n matrix containing n distinct symbols, such that each symbol appears in each row and column exactly once. Ms....

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Grad Seminar: Quaternion Algebras

UNB

Posted: March 24, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


Graduate Seminar Quaternion Algebras Amir Nasr Azadani (UNB) Tuesday, March 25, 2014 at 11:30 am Tilley Hall Room 124 My talk is on Quaternion algebras. We give the definition of quaternion and split quaternion algebras, splitting fields and norms of elements. After that conics associated with quaternion algebras will be discussed. Then two classical theorems from the 1930s will be mentioned: a theorem of Witt related to associated conics and a theorem of Albert that determines a criterion...

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PhD Defense: On the Classification of Certain Inductive Limits of Real Circle Algebras and Multiplicativity of Certain Schur Operators

UNB

Posted: March 18, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


Doctor of Philosophy Thesis Defense On the Classification of Certain Inductive Limits of Real Circle Algebras and Multiplicativity of Certain Schur Operators Aydin Sarraf (UNB) Thursday, March 20, 2014 at 1:30 pm Harriet Irving Library, Seminar Room 417 (4th floor) This dissertation is divided into two parts. In the first part, I classify simple unital real C*-algebras that are inductive limits of certain real circle algebras. The invariant consists of certain triples of real K-groups and the...

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Colloquium: Cataland

UNB

Posted: March 17, 2014 5:00:00 AM ADT

Category: Seminars and Colloquia


Colloquium Cataland Nathan Williams (Université du Québec à Montréal) Thursday, March 20, 2014 at 3:30 pm Tilley Hall Room 5 I will talk about two combinatorial miracles relating poset-theoretic objects with Coxeter-theoretic objects. The first miracle is that there are the same number of linear extensions of the root poset as reduced words of the longest element (occasionally), while the second is that there are the same number of order ideals in the root poset as certain...

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[POSTPONED] Colloquium: Quasilinear Systems of PDEs: Hamiltonian structures and integrability

UNB

Posted: March 6, 2014 4:00:00 AM AST

Category: Seminars and Colloquia


ColloquiumQuasilinear Systems of PDEs: Hamiltonian structures and integrability Patrick Reynolds (University of New Brunswick) Thursday, March 13, 2014 at 3:30 pm Tilley Hall Room 5 POSTPONED DUE TO INCLEMENT WEATHER This talk will focus on two questions concerning quasilinear systems of PDEs (also known as systems of hydrodynamic type): under what conditions are they Hamiltonian, and under what conditions are they integrable? We’ll see how such conditions can be formulated in terms of...

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PhD Defense: Dynamics of Plant-Herbivore Interaction with Chemical Defense and Spatial Diffusions

UNB

Posted: January 5, 2014 4:00:00 AM AST

Category: Seminars and Colloquia


Doctor of Philosophy Thesis DefenseDynamics of Plant-Herbivore Interaction with Chemical Defense and Spatial Diffusions Fang Yu (UNB) Tuesday, January 7, 2014 at 10:00 am Harriet Irving Library Seminar Room (4th floor) The purpose of this dissertation is to investigate the dynamics of plant-herbivore interactions with plant defense by assuming the numerical response is not necessarily proportional to the functional response. We first introduce basic background on plant chemical defense and...

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Colloquium: Some results on Nicholson's blowflies equations

UNB

Posted: December 28, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


ColloquiumSome results on Nicholson’s blowflies equations Yuming Chen (Wilfrid Laurier University) Tuesday, January 7, 2014 at 2:30 pm Tilley Hall Room 309 Data drawn from the comprehensive and elegant experiments performed by Nicholson on laboratory cultures of the sheep blowfly are used as illustrative examples of oscillatory population fluctuations in numerous elementary ecology texts. To model this phenomenon, Gurney et al. proposed a model...

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Colloquium: A Trip to the Tropics

UNB

Posted: December 20, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


ColloquiumA Trip to the Tropics Joe Kileel (University of California, Berkeley) Tuesday, January 7, 2014 at 3:30 pm Tilley Hall Room 404 In the middle of winter, this talk will offer a trip to the tropics. Er, at least to tropical mathematics, where algebraic geometry is turned into polyhedral geometry, 1 + 1 = 1, and the picture below is of a smooth curve: By the end of the talk, that should all make sense. Joe Kileel is a Graduate Student in the Department of Mathematics, University...

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Grad Seminar: Gelfand-Fuks Cohomology of the Formal Vector Fields

UNB

Posted: December 13, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Grad Seminar Gelfand-Fuks Cohomology of the Formal Vector Fields Fereshteh Yazdani (UNB) Thursday, December 19, 2013 at 3:30 p.m. Tilley Hall Room 5 In my talk I will speak about the concept of spectral sequence which has a very important role in computing the cohomology and I will define the Gelfand-Fuks cohomology by introducing formal vector fields. Then by using the method of applying spectral sequence I will show the relation between the Gelfand-Fuks cohomology and the cohomology of...

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Colloquium: Renormalization Group Approach to Quantum Gravity

UNB

Posted: December 3, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Colloquium Renormalization Group Approach to Quantum Gravity Gaurav Narain (Institute of Mathematical Sciences, India) Thursday, December 5, 2013 at 12:30 pm Tilley Hall Room 404 In the last century, theoretical physics witnessed two important major revolutions: Quantum Mechanics and General Relativity. First one addresses the physics at small scales while second one explains a large number of phenomenas ranging from astrophysical to cosmological scales. However there are situations...

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Grad Seminar: Bosonic String in the Friedmann-Robertson-Walker Spacetime

UNB

Posted: December 3, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Graduate Seminar Bosonic String in the Friedmann-Robertson-Walker Spacetime Shohreh Rahmati (UNB) Thursday, December 5, 2013 at 3:30 pm Tilley Hall Room 5 Bosonic strings are one-dimensional objects that propagate in a two-dimensional manifold embedded in a higher dimensional target space. The evolution of the string depends on the metric of the target space. In this talk, I will talk about the Polyakov action for a bosonic string and its constraints. I will also describe briefly the...

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Grad Seminar: K-Theory for Graph C*-Algebras

UNB

Posted: December 3, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Graduate Seminar K-Theory for Graph C*-Algebras Christopher Chlebovec (UNB) Friday, December 6, 2013 at 2:30 pm Tilley Hall Room 404 In C*- algebraic K-Theory, one associates to each C*-algebra a pair of abelian groups which contain a great deal of information about the C*-algebra. In my talk, I will discuss the construction of these groups and then focus my attention on computing the K-theory of graph C*-algebras. Christopher...

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Grad Seminar: Dynamics of the Wangersky-Cunningham Predator-Prey Model

UNB

Posted: December 2, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Graduate Seminar Dynamics of the Wangersky-Cunningham Predator-Prey Model Xi Hu (UNB) Thursday, November 21, 2013 at 1:30 pm Tilley Hall Room 104 The Wangersky-Cunningham predator-prey model is a two dimensional model which adds a time lag into the Lotka-Volterra predator-prey model. The Wangersky-Cunningham Model assumes that the predator does not immediately convert consumed prey into predator numbers, resulting in a time-lag between prey death and predator growth. In this talk, I will...

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Grad Seminar: Extracting Energy from Black Holes

UNB

Posted: December 2, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Graduate Seminar Extracting Energy from Black Holes Syed Moeez Hassan (UNB) Thursday, November 28, 2013 at 2:30 pm Tilley Hall Room 5 Einstein’s General Relativity is a theory of gravity that explains our universe on large scales. One of the solutions to Einstein’s equations is the Kerr solution which describes a rotating black hole. Roger Penrose suggested a method of extracting energy from such black holes known as the Penrose mechanism. In this talk, I will give an introduction...

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Colloquium: Equivariant Index Theorem and the Van Est Map

UNB

Posted: November 29, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Colloquium Equivariant Index Theorem and the Van Est Map Xiang Tang (Washington University in St Louis) Thursday, October 31, 2013 at 3:30 pm Tilley Hall Room 5 Let H be a compact subgroup of a Lie group G. When G/H is not compact, G-invariant elliptic operator on G/H in general fails to be Fredholm. In this talk, we will explain an index theorem about such operators using non-commutative geometry. Dr. Xiang Tang is an Associate Professor of Mathematics at Washington University in...

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Colloquium: Non-commutative resolutions of singularities and the global spectrum

UNB

Posted: November 29, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Colloquium Non-commutative resolutions of singularities and the global spectrum Eleonore Faber (University of Toronto) Wednesday, November 13, 2013 at 2:30 pm Tilley Hall Room 302 This talk is about non-commutative analogs of resolutions of singularities. In short, non-commutative desingularizations of a commutative ring R are endomorphism rings of certain R-modules of finite global dimension. After some motivating examples, we discuss several approaches to non-commutative resolutions...

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Colloquium: Vortex Filament Dynamics

UNB

Posted: November 29, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Colloquium Vortex Filament Dynamics Walter Craig (McMaster) Thursday, October 10, 2013 at 2:30 pm Tilley Hall Room 125 In this talk I will describe a problem in fluid dynamics concerning the interaction of two near-parallel vortex filaments in three dimensions. This is an example of phase space analysis of a partial differential equation (PDE) that can be formulated as a Hamiltonian dynamical system with infinitely many degrees of freedom. Mathematicians have developed techniques for...

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Colloquium: What Happened Before the Big Bang

UNB

Posted: November 29, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Colloquium What Happened Before the Big Bang? Martin Bojowald (Penn State) Thursday, November 14, 2013 at 3:30 pm Tilley Hall Room 5 The standard model of cosmology suggests that the universe started with a phase of very high density, described by general relativity as a singularity. Quantum gravity attempts to resolve the singularity by a more fundamental, microscopic theory of space-time. If its equations always remain valid, they could tell us what happened at or even before the big...

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Grad Seminar: Differential Forms in Topology and Geometry

UNB

Posted: November 29, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Graduate Seminar Differential Forms in Topology and Geometry Mohammed Alhumaidi (UNB) Thursday, November 7, 2013 at 3:30 pm Tilley Hall Room 5 We give a brief overview of differential forms and their properties, including Stoke’s theorem. The definition of de Rham cohomology is then given. This is followed by the presentation of two applications: the derivation of the Hopf invariant and a proof of the Gauss Bonnet theorem using the method of moving frames. Mohammed...

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Grad Seminar: Graph C*-Algebras

UNB

Posted: November 29, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Graduate Seminar Graph C*-Algebras Christopher Chlebovec (UNB) Thursday, October 17, 2013 at 3:30 pm Tilley Hall Room 5 Graph C*- algebras are a class of C*- algebras in which we can associate, to each directed graph, a unique C*- algebra. They encompass a large array of examples and allow us to encode the inherent properties of the C*- algebra by analyzing its corresponding graph. In this talk, I will discuss the construction of these C*- algebras as well as its ideal...

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Public Talk: Ocean Waves and Tsunamis

UNB

Posted: November 29, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


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Colloquium Finding The Hidden Space Behind Complex Networks

UNB

Posted: November 25, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


ColloquiumFinding The Hidden Space Behind Complex Networks: An Approach Using The New Theory Of Graph Limits Jeanette Janssen (Dalhousie) Wednesday, October 9, 2013 at 2:30 pm Carleton Hall Room 306 Many real-life networks can be modeled by stochastic processes with a spatial embedding. In such processes, the link probability decreases with distance. The spatial embedding can be seen as a representation of the “hidden reality” about the network. Retrieving the spatial...

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Colloquium Noncommutative Rational Singularities

UNB

Posted: November 25, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


ColloquiumNoncommutative Rational Singularities Kenneth Chan (University of Washington in Seattle) Thursday, September 12, 2013 at 3:30 pm Tilley Hall Room 125 We introduce the notion of Brauer log pairs and explain their connection with noncommutative algebraic geometry. There is a theory, analogous to the log MMP, which provides terminal models for Brauer log pairs over surfaces. We define the notion of “numerical rationality” for Brauer log pairs, and discuss some of their properties. This...

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Colloquium Singular Differential Equations and the Stokes Groupoids

UNB

Posted: November 25, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


ColloquiumSingular Differential Equations and the Stokes Groupoids Brent Pym (McGill) Thursday, September 5, 2013 at 3:30 pm Tilley Hall Room 125 Solutions of ordinary differential equations typically behave quite badly near an irregular singular point, exhibiting essential singularities and divergent power series expansions. In recent work with Marco Gualtieri and Songhao Li, we use methods from differential and algebraic geometry particularly, the theory of Lie groupoids to construct spaces...

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Grad Seminar: Modeling a Biological Invasion by Integrodifference Equation

UNB

Posted: November 25, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Graduate SeminarModeling a Biological Invasion by Integrodifference Equation Ali Gharouni (UNB) Thursday, October 3, 2013 at 3:30 pm Tilley Hall Room 224 An integrodifference equation model is one of several types of mathematical models (ODE, PDE, delay, stochastic,…) that are used to study and predict the dynamics of a biological invasion. Integrodifferences incorporate models for the local demography and the dispersal of a population in a discrete time and continuous space. It...

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MSc Oral Exam Dynamics of A Pathogen-immune Interaction Model

UNB

Posted: November 19, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Masters of Science Oral ExaminationDynamics of a Pathogen-immune Interaction Model Nora Alshobrami (UNB) Wednesday, September 4, 2013 at 2:30 pm Carleton Room 255 A new mathematical model is proposed to describe the interaction between the virus and the immune cells. For this new model, we study the existence of non-negative equilibrium, the bifurcation, the stability of equilibrium. We also carry out numerical simulations to illustrate all possible dynamics. In addition, we numerically...

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MSc Defense Primordial Fluctuations from Deformed Uncertainty Relations

UNB

Posted: November 18, 2013 4:00:00 AM AST

Category: Seminars and Colloquia


Masters of Science Thesis DefensePrimordial fluctuations from deformed uncertainty relations Andrew Day (UNB) Monday, August 19, 2013 at 2:00 pm Tilley Hall Room 104 We consider the effects of modified uncertainty relations on the generation of primordial perturbations during inflation. Our approach involves high-energy deformations of the commutator algebra between the Fourier-transformed amplitude and momentum of scalar perturbations. We find that a certain class of deformations of the...

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