# Seminars & Colloquia

For a list of past events click here.

**Winter 2015**

**Colloquium**

**Speaker: **Dr Yuanlin Li, Brock University

**Date/Time: **Friday, April 24, 2015 11:00a.m.-12:00a.m.

**Room: **HH-3026

**Title: **On The Davenport Constant

**Algebra Seminar**

**Speaker: **Dr. Yuri Bahturin

**Date/Time: **Wednesday April 8, 2015 from 1:00-2:00pm

**Room: **HH-3017

**Title: **Real Graded Simple Algebras III

**Honours Presentation**

**Speakers:** Brandon Thorne, Devin Grant, and Andrew Rose

**Date/Time: **April 7, 2015, from 10:30-12:00 noon.

**Room: **HH-3017

**Title: **Math Honours Presentations part 1

**Graduate Seminar in Mathematics**

**Speaker:** Mr. Uzair Hussain, Memorial University

**Date/Time:** Thursday, April 2, 2015, from 1:00-2:00 p.m.

**Room:** HH-3017

**Title: **Automatic Differentiation with applications to Initial Value Problems

**Graduate Seminar in Mathematics**

**Speaker:** Dr. Hari Kunduri, Memorial University

**Date/Time:** Thursday, March 26, 2015, from 1:00-2:00p.m.

**Room:** HH-3017

**Title:** Introduction to Riemannian Geometry

**Algebra Seminar**

**Speaker:** Dr. Yuri Bahturin

**Date/Time:** Wednesday, March 25, 2015 from 1-2pm

**Room:** HH-3017

**Title:** Real Graded Simple Algebras II

**Graduate Seminar in Statistics**

**Speaker:** Su Yu, Memorial University

**Date/Time:** Monday, March 23, 2015, 1:00p.m.

**Room:** HH-3017

**Title:** Computation of Identity by Descent Coefficients

**Applied Dynamical System Seminar**

**Speaker:** Mr. Xiao Yu, Memorial University

**Date/Time**: Monday, 1:00 March 23, 2015

**Room:** HH-3026

**Graduate Seminar**

**Speaker**: Mona Sayehban, Memorial University

**Date/Time**: Friday, March 20, 2015 2:00p.m.

**Room**: HH-3017

**Titile:** Mean field evolution of an open quantum system

**Graduate Seminar in Mathematics**

**Speaker: **Mr. Uzair Hussain, Memorial University

**Date/Time**: Thursday, March 19, 2015, 1:00 p.m.

**Room:** HH-3017

**Title: **Perturbation Theory in General Relativity

**Graduate Seminar in Statistics**

**Speaker:** Dr. Yanqing Yi, Memorial University

**Date/Time:** Monday, March 16, 2015 from 1-2pm

**Room:** HH-3017

**Titile:** The order of error probabilities for response adaptive designs of clinical

trials

**Graduate Seminar**

**Speaker:** Mona Sayehban, Memorial University

**Date/Time:** Friday, March 20, 2015 2:00p.m.

**Room:** HH-3017

**Titile:** Mean field evolution of an open quantum system

**Graduate Seminar in Mathematics**

**Speaker:** Mr. Michael Watson

**Date/Time:** Thursday, March 12, 2015 from 1-2pm

**Room:** HH-3017

**Title: **Ramsey Theory

**Graduate Seminar in Statistics**

**Speaker:** Ms. Shuhana Shahnaz

**Date/Time:** Monday, March 9, 2015 from 1-2pm

**Room:** HH-3017

**Title:** Modelling of cross over and interference in mice

**Applied Dynamical Systems Seminar**

**Speaker:** Mr. Xiao Yu

**Date/Time:** Monday, March 9, 2015 from 1-2pm

**Room:** HH-3026

**Title: **Traveling waves and spreading speeds for time-space

periodic monotone systems: I. The abstract theory

**Graduate Seminar in Mathematics**

**Speaker: **Mr. Aghil Alaee Khangha

**Date/Time: **Thursday, March 5th, 2015 from 1-2pm

**Room: **HH-3017

**Title: **Mathematical aspects of black holes

**Algebra Seminar**

**Speaker:** Dr. Yuri Bahturin

**Date/Time:** Wednesday, March 4, 2015 from 1-2pm

**Room:** HH-3017

**Title:** Real Graded Simple Algebras

**Graduate Seminar in Statistics**

**Speaker: **Dr. J.C. Loredo-Osti

**Date/Time: **Monday, March 2, 2015 from 1-2pm

**Room: **HH-3017

**Title: **Two Variations on the EM Algorithm

**Applied Dynamical Systems Seminar**

**Speaker: **Mr. Isam Darabseh

**Date/Time: **Monday, March 2, 2015 from 1-2pm

**Room: **HH-3026

**Title: **Mathematical Models for the transmission of Ebola virus disease

**Graduate Seminar**

**Speaker:** Mr. Alireza Rafiyi

**Date:** Thursday, February 26, 2015**Room:** HH-3017

**Title:** Information Reduction in Quantum Mechanics

**Algebra Seminar**

**Speaker: **Ms. Helen Dos Santos

**Date: **Wednesday, February 25, 2015

**Room: **HH-3017

**Title: **Group gradings on simple Lie superalgebra Q(n)

**Graduate Seminar in Statistics**

**Speaker: **Dr. Ting Hu

**Title: **Model the Complex Human Genome to Disease

Association Using Information Theory and Network

Science

**Algebra Seminar**

**Speaker:** Dr.** **Diogo Diniz Pereira da Silva e Silva

**Title: **"A primeness property for the central polynomials of verbally prime P.I. algebras"

**Graduate Seminar**

**Speaker: ** Mr. Xiao Yu

**Title: **A Periodic Reaction-Advection-Diffusion Model for A Stream Population

**Statistics Seminar**

**Speaker:** Mr. Tharshanna Nadarajah

**Title:** Penalized Empirical Likelihood Based Variable Selection

for Longitudinal Data Analysis

**Applied Dynamical Systems Seminar**

**Speaker: **Liang Zhang

**Title: **A Time-Periodic Reaction-Diffusion Epidemic Model with Latent Period

**Graduate Seminar**

**Speaker: **Mr. Caio De Naday Hornhardt

**Title: **Gradings on Lie superalgebras

**Seminar**

**Speaker: **Dr. Noel Cadigan

**Graduate Seminar**

**Speaker**: Huadong Su

**Title**: A study of unit graphs and unitary Cayley graphs associated with rings

**Graduate Seminar**

**Speaker**: Dr. Candemir Cigsar

**Title**: Estimation methods for the Analysis of Recurrent Events

**Graduate Seminar**

**Speaker: **Dr. Jie Xiao

**Title: **A Halfway to the Pölya-Szegö Conjecture for Electrical Capacitance

**Analysis Seminar**

**Speaker: **Dr. Yuzhao Wang

**Title: **Uniqueness of Nonnegative Weak Solution to Fractional Differential Inequality

**Graduate Seminar**

**Speaker**: Dr. Yildiz Yilmaz

**Title**: Estimability of Measures of Association under Different Study Designs and Causality

**Topology and Geometry Seminar**

**Speaker**: Dr. Eduardo Martinez-Pedroza

**Title**: Homological Isoperimetric Inequalities

**Graduate Seminar**

**Speaker**: Dr. Danny Dyer

**Title**: Some models of graph searching

**Graduate Seminar**

**Speaker**: Mr. Nan Zheng

**Title**: Inference in Stochastic Volatility Models for Gaussian and t Data

**Graduate Seminar**

**Speaker: **Scott MacLachlan

**Title: **Fast Solvers for Geodynamic Flows

**Fall 2014**

**Colloquium**

**Speaker: **Dr. Etienne Farcot

**Title: **Identifying and characterizing permutation patterns in spiral phyllotaxis

**Algebra Seminar**

**Speaker**: Shadi M. Shaqaqha

**Title**: "Schreier formula for free color Lie superalgebras"

**Colliquium**

**Speaker: **Dr. Yun Tian

**Graduate Seminar**

**Speaker**: Ronald D. Haynes

**Title**: Adaptive Meshes and Domain Decomposition

**Seminar**

**Speaker:** Mr. Isam Al-Darabsah** **

**Title: **A Prey-Predator Model with n Patches, Migrations and Delays

**Graduate Seminar**

**Speaker: **Marco Merkli

**Title: **About the Dynamics of Quantum Particles

**Graduate Seminar**

**Speaker: **Naren Kumar.G

**Title: **Analysis of key predistribution schemes in wireless sensor networks

**Seminar**

**Speaker: **Yuzhao Wang

**Title: **On positive solutions of the p-Laplace inequality on

Riemannian manifolds

**Seminar**

**Speaker: **Tom Baird

**Title: **Lagrangian submanifolds in symplectic and Kaehler geometry

**Seminar**

**Speaker**: Dr. Chun-Hua Ou

**Title**: Generalized Asymptotic Expansions for Singularly Perturbed BVPs

**Colloquium**

**Speaker: **Dr. Sherry Mantyka

**Title: **The Arithmetic Skill Levels of New Students At the Mathematics Learning Centre, 2012-2014

**Graduate Seminar**

**Speaker**: David Pike

**Title**: Combinatorial designs and block-intersection graphs

** **

**Seminar**

**Speaker: **Xiaoqaing Zhao

**Title: **Propagaton Phenomena for A Reaction and Diffusion Model with Seasonal Succession

**Seminar**

**Speaker: **Hari Kunduri

**Title: **Black hole non-uniqueness from spacetime topology

**Distinguished Colloquium**

**Speaker**: Professor Goong Chen

**Seminar**

**Speaker: **Yuri Bahturin

**Title: **Locally Finite Algebra

**Seminar**

**Speaker**: Dr. Yuan Yuan

**Title**: : A non-nitrogen-fixing/nitrogen-fixing phytoplankton

growth model with nutrient and ligh

**Graduate Seminar**

**Speaker**: H.K. Kunduri

**Title**: A brief Introduction to Riemannian Geometry

**Seminar**

**Speaker: **Shaoxiong Hou

**Title: **Capacities and embeddings via symmetrization and conductor inequalities

**Seminar**

**Speaker**: Yildiz Yilmaz

**Title**: Bivariate genetic association analysis of systolic and diastolic blood pressure

**Seminar**

**Speaker:** Xiao Yu

**Seminar**

**Speaker**: Shaoxiong Hou

**Title**: The predual spaces of Morrey spaces and Campanato spaces

**Seminar**

**Speaker**: Margo Kondratieva

**Seminar**

**Speaker: **Mr. Xiao Yu

**Title**: A Reaction-Advection-Diffusion Competition Model in A Periodic

Habitat: I. Competitive exclusion and spatial dynamics

**Seminar**

**Speaker: **Ivan Booth

**Title: **Black holes in mathematics and physics

**Seminar**

**Speaker: **Dr. Piotr Przytycki

**Title: **Slim unicorns

**Seminar**

**Speaker:** Iren Darijani

**Title: **The classification of [p]- nilpotent restricted Lie algebras of dimension 5

**Seminar**

**Speaker**: Liang Zhang

**Title: **Spatial Dynamics of A Diffusive Predator-Prey Model with Stage

Structure

**Seminar**

**Speaker**: Dr. Yu Liu

**Title**: On p-variational capacity and the improved isoperimetric inequalities in the Grushin plane

**Colloquium**

**Speaker:** Dr. Piotr Przytycki

**Title: **Geometric group theory and random groups

**Seminar**

**Speaker: **Deping Ye

**Title: **Anisotropic Sobolev Capacity with Fractional Order

**Colloquium**

**Speaker:** Yuzhao Wang

**Title:**Partial periodic hyperbolic Schrodinger equation

**Seminar**

**Speaker:** Afework Solomon

**Title:** The Homotopy category is not a Homotopy Category

**Seminar**

**Speaker: **Yiqiang Zhou

**Title: **Rings of Matrices

**Seminar**

**Speaker**: Jahrul Alam

**Title:**Turbulence modeling for the atmoppheric boundary layer

**Seminar**

**Speaker: **Tom Baird

**Title: **Morse theory and homology

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Yun Tian

**Title:** Impact of Delay on HIV-1 Dynamics of Fighting A Virus with

Another Virus

**Colloquium**

**Speaker:** Eric Hehner

**Title: **Problems with the Halting Problem

**Colloquium**

**Speaker:** Eric Hehner

**Title: **A Probability Perspective

**Colloquium**

**Speaker:** Eric Hehner

**Tit****le: **Practical Predicative Programming Primer

**Colloquium **

**Speaker: **Eric Hehner

**Title: **from Boolean Algebra to Unified Algebra

**Seminar Announcement**

**Speaker: **Dr. Koji Sawa

**Title: **Representations of psychological, logical, or biological features by means of "softness"

**Distinguished Colloquium**

**Speaker: **Professor John Wilson

**Title: **Non-standard finite simple groups

**Graduate Seminar**

**Speaker: **Dr. Mikhail Kotchetov

**Title: **Introduction to Lie Theory

**Algebra Seminar**

**Speaker: **Eduardo Martinez-Pedroza

**Title: **A Subgroup Theorem for Homological Dehn Functions

**Graduate Seminar**

**Speakers: **Dwayne Hart & Dr. JC Loredo-Osti

**Title: **Computing Resources Overview & Some concepts in LATEX

**Mini course and Distinguished Colloquium**

**Speaker: **Professor John Wilson

**TItle:** Mini-course entitled: “Branch groups: theory and practice”

Distinguished Colloquium:“Non-standard finite simple groups”

**Colloquium**

**Speaker: **Andy Wathen

**Title: **Preconditioning for PDE-constrained Optimization

**Fluid Dynamics Seminar**

**Speaker: **Jared Penney

**Title: **Salt Finger Instabilities near Gravity Currents and Topography

**Opening Lecture of International Workshop**

**Speaker: **Professor Victor Kac

**Title:** Algebraic theory of integrable systems

**Distinguished Colloquium**

**Speaker: **Professor Victor Kac

**Title: **Ramanujan mock theta function and representations of

infinite-dimensional Lie superalgebras

**Spring 2014**

**Departmental Seminar**

**Speaker: **Marco Astorino, Centro de Estudios Cientificos, Valdivia, Chile

**Title:** Solution Generating Techniques in General Relativity

**Fluid Dynamics Seminar**

**Speaker:** Dr. Aziz Rahman

**Title:** Advanced Multiphase Flow Measurement Techniques and CFD Simulations Related Flow Assurance

**Winter 2014**

**Thesis Presentation**

**Speakers: **Peter O'Reilly & Raymond Walsh

**Algebra Seminar**

**Speaker:** Yuri Bahturin, Memorial University

**Title:** Locally finite Lie algebras

**Thesis Presentation**

**Speakers: **Justin McGrath & Adam Gardner

**Titles:** Effective Coherence in Random Groups & A Combinatorial Riemannian Penrose Inequality

** Algebra Seminar**

**Speaker: **Yuri Bahturin, Memorial University

**Title:** Locally finite Lie algebras

**Combinatorics Seminar**

**Speaker: **David Pike, Memorial University

**Title: **Colouring Block Designs

**Graduate Seminar**

**Speaker:** Dwayne Hart

**Title:** Here Comes the Bride: A Marriage Between Physical and Virtual Technology

**Graduate Seminar**

**Speakers:** Abu Naser Sarker & Helen Samara Dos Santos

**Algebra Seminar**

**Speaker: **Yuri Bahturin, Memorial University

**Title: **Classification of group gradings on nilpotent algebras

**Algebra Seminar**

**Speaker: **Mikhail Kotchetov

**Title: **Classification of Semisimple Lie Algebras Over the Field of Real Numbers

**Graduate Seminar**

**Speakers:** Eyad AlFarajat, Memorial University & Fatimah Alruhaymi,

Memorial University

**Titles: **On Homology Groups of Fuzzy Topological Spaces & Indecomposable Skolem and Rosa Sequences

**Graduate Seminar**

**Speaker: **Dr. Candemir Cigsar

**Title: **Modelling and Analysis of Recurrent Events

**Departmental Colloquium **

**Speaker: **Dr. Francois Hamel, Universite d'Aix-Marseille & Institut, Universitaire de France

**Title: ** Do The Positive Solutions of Elliptic PDEs in Convex Domains Have Convex Level Sets ?

**Graduate Seminar**

**Speaker: **Brajendra Sutradhar

**Title: **Analyzing Longitudinal Ordinal Multinomial Data

**Graduate Seminar**

**Speakers: **Sarah Aljaryan, Memorial University & Martin Konenberg

Memorial University

**Titles: **The Belousov-Zhabotinsky Reaction Model & Spectral Theory and its Application to Open Quantum Systems

**Colloquium**

**Speaker: **Dr Christopher Staecker, Fairfield University

**Title: **The Rotation Number for Maps on Graphs

**Topology and Geometry Seminar**

**Speaker: ** Takehiko Yamaguchi

**Title: **Persistent homology - studying the distribution of points within a point cloud

**Graduate Seminar**

**Speakers: **Sudharaka Palamakumbura, Memorial University & Muhan Yu, Memorial University

**Research Talk for Tenure Track Position**

**Speaker: **Dr. Hari Kunduri

**Title: **The Black Hole Classification Problem

**Topology and Geometry Seminar **

**Speaker: **Gaelan R. Hanlon, Memorial University

**Title:** Filling Invariants of Groups

**Algebra Seminar**

**Speaker: **Dr Yiqiang Zhou, Memorial University

**Title: **A Theorem on diagonalization of idempotent matrices

**Combinatorics Seminar**

**Speaker:** Matthew Sullivan, Memorial University

**Title:** A Decycling Game and Decycling Planar Graphs

**Graduate Seminar**

**Speakers: **Sharmila Dhevi, Memorial University** **& Mona Sayehban

Memorial University

**Title:**Extended phase-space thermodynamics of charged black holes** **& Open quantum systems

**Graduate Seminar**

**Speaker: **Michael Slawinski, Memorial University

**Title: **On implications of tensor-algebra properties in

**Graduate Seminar**

**Speakers: **Iren Darijani, Memorial University & Takehiko Yamaguchi,Memorial University

**Title: **The Isomorphism Problem of Group Rings & Approximating the Homology of a Manifold

**Graduate Seminar**

**Speaker: **Mohammad Alamgir Hossain, Memorial University &

Shaoxiong Hou, Memorial University

**Title: **Numerical Modelling of the Urban Heat Island Circulation &

Musielak-Orlicz BMO-Type Spaces

**Combinatorics Seminar**

**Speaker: **Robert Luther, Memorial University

**Title: **Equitably Colourable Combinatorial Designs

**Colloquium**

**Speaker: **Junyang Yu, Dept of Mathematics Shanghai Jiao Tong University P.R. China

**Title: **ON EXTENSIONS OF THE FIELD OF MEROMORPHIC FUNCTIONS

**Algebra Seminar**

**Speaker: **Dr. Hamid Usefi, Memorial University

**Title: **Classification of p-nilpotent restricted Lie algebras of dimension at most 4

**Graduate Seminar**

**Speaker: **Kathleen Barnetson & Robert Luther, MUN

Title: ** The Key Player Problems and Graphs & Equitably Colourable Combinatorial Designs**

**Graduate Seminar**

**Speaker: **Valentin Gruzdev, Memorial University

**Title: **Relative growth rate of subgroups of free groups

**Graduate Seminar**

**Speaker: **Gaelan Hanlon, Memorial University

**Title: **Geometric group extensions

** ****Algebra Seminar**

**Speaker: **Mikhail Kotchetov, Memorial University

**Title:** "Graded modules over simple Lie algebras with a group grading"

**Graduate Seminar**

**Speaker: **John Bowden, Memorial University

**Title: **On dynamic noncommutative spacetimes

**Graduate Seminar**

**Speaker: ** Daniela Silvesan, MUN

**Title:** Cyclic BIBD$(v,3,\lambda)$ from Skolem-Type Sequences-Constructions and Properties

**Fall 2013**

Geometry and Topology Seminar

**Speaker**: Hari Kunduri, Memorial University.

**Title**: The first law of soliton and black hole mechanics

**Graduate Seminar**

**Speaker: **Amy Hurford, Memorial University

**Title:** An introduction to mathematical biology

**Geometry and Topology Seminar**

**Speaker:** Eduardo Martinez-Pedroza, Memorial University

**Title:** Non-positively Curved Complexes

**Algebra Seminar**

**Speaker: **Huadong Su, Memorial University

**Title: **A characterization of rings with planar unitary Cayley graphs

**Graduate Seminar**

**Speaker: **Jahrul Alam, Memorial University

**Title: **Miscible mass transfer mechanism in porous media

**Algebra Seminar**

**Speaker:** Valentin Gruzdev, Memorial University

**Title: **Relative growth of subgroups of free groups

**Math Seminar**

**Speaker: **Afework Solomon, Memorial University

**Title**: Model Categories and Homotopy Theory.

**Applied Dynamical Systems seminar**

**Speaker: **Dr. Chunhua Ou, Memorial University

**Title**: Asymptotic Analysis of the Perturbed Poisson Boltzmann Equation on Unbounded Domains

**Algebra Seminar**

**Speaker: **Gaelan Hanlon, Memorial University

**Title: **Introduction to Topological Dehn Functions

**Graduate Seminar**

**Speaker: **Hari Kunduri, Memorial University

**Title: **Einstein manifolds, black holes and solitons

**Graduate Seminar**

**Speaker: **Tom Baird, Memorial University

**Title: **Representation theory of compact Lie groups

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Shu Zhang, PDF,Memorial University

**Title: **The Equilibria of TCP/RED model implemented by a new scheme of dynamic routing

**Graduate Seminar**

**Speaker: ** David Pike, Memorial University

**Title: **Combinatorial designs and block-intersection graphs

**Applied Dynamical Systems seminar**

**Speaker: **Mr. Isam Al-Darabsah, Memorial University

**Title**: Dynamics on a general stage structured n parallel food chains

**Graduate Seminar **

**Speaker: **Marco Merkli, Memorial University

**Title: **Open Quantum Systems

**Algrbra Seminar**

**Speaker: **Yuri Bahturin (MUN)

**Title: **"Growth of subalgebras and subideals in free Lie algebras"

**Applied Dynamical Systems seminar**

**Speaker: **Yuan Yuan, Memorial University

**Title: T**hreshold Dynamics in an SEIRS Model with Latency and Temporary Immunity

**Graduate Seminar**

**Speaker: ** Deping Ye, Memorial University

**Title: **Invitation to Geometry of Convexity and Quantum States in High Dimension

**Algebra Seminar**

**Speaker: Misha Kotchetov, Memorial University**

**Title: **Fine gradings of exceptional simple Lie algebras

**Geometry and Topology Seminar**

**Speaker: **Alberto Palomo-Lozano

**Title: **Standing on the shoulders of geometers: the string curved propagation model.

**Graduate Seminar**

**Speaker: **Eduardo Martinez - Pedroza, Memorial University

**Title: **An Introduction to Hyperbolic Groups

**Applied Dynamical Seminar**

**Speaker: **Dr. Xiaoqiang Zhao, Memorial University

**Title: **The Principal Eigenvalue of A Periodic Parabolic Problem

**Algebra Seminar**

**Speaker: **Mikhail Kotchetov, Memorial University

**Title: **Fine gradings of exceptional simple Lie algebras

**Graduate Seminar**

**Speaker: ** Yuri Bahturin

**Title**: The Burnside Problem

**Geometry and Topology Seminar**

**Speaker: **Tom Baird, Memorial University

**Title: **Twisted Lie groups and classifying spaces.

**Algebra Seminar**

**Speaker: **Diego Aranda Orna, University of Zaragoza, Spain

**Title**: Introduction to structurable algebras. II

**Applied Dynamical Systems seminar**

**Speaker: **Dr. Kaibiao Sun, Dalian University of Technology & Memorial University**Title:** Adaptive fuzzy control theory and its application in inverted pendulum control

**Applied Dynamical Systems seminar **

**Speaker: **Dr. Shu Zhang, PDF, Memorial University

**Title**: The Equilibrium and Sliding Motion in an Internet Congestion Control Model with Dynamics Routing

**Local Math CompetitionSeptember 25, 2013**

**Algebra Seminar**

**Speaker: **Dr. Salvatore Siciliano, University of Salento, Italy

**Title: **Lie properties of enveloping algebras and related topics

**Colloquium**

**Speaker: Dr. Carsten Schuett, Christian-Albrechts, Universitat Kiel**

**Title: Affine Invariant Points (joint work with M. Meyer and E. Werner)**

**Colloquium**

**Speaker: ** Dr. Elisabeth Werner, Case Western Reserve University, Cleveland, Ohio, USA

**Title: **Divergence for s-concave and log concave functions

**Algebra Seminar**

**Speaker: **Diego Aranda Orna, University of Zaragoza, Spain

**Title: **Introduction to structurable algebras

**Departmental Colloquium**

**Speaker: **Dr. Manjun Ma, China Jiliang University

**Algebra Seminar**

**Speaker:** Alexander Baranov, University of Leicester, UK

**T**itle: Direct limits of involution simple associative algebras

**Colloquium**

**Speaker: **

Dr. Camille Male, University of Ottawa

**Title: **"The spectrum of random matrices, free probability theory

**Thesis Presentation**

**Speaker: **Matthew Hunt, Memorial University

**Title: **PHASE SPACE OF EXTREMAL MELVIN-KERR-NEWMAN BLACK HOLES

**Departmental Colloquium**

**Speaker: **Dr. Yijun Lou, The Hong Kong Polytechnic University

**Speaker: **Andrew Day, UNB

**Title: **Primordial fluctuations from deformed uncertainty relations

**Colloquium**

**Speaker: **Dr. B. Dai, Central South University, China

**Title: **Global dynamics and optimal harvesting of two competing species with interval biological parameters

**Geometry & Topology Seminar**

**Speaker: **Brad Dart, Memorial University

**Title: **An Introduction to Functors and Sheaves

**Seminar**

**Speaker: Brad Dart**

**Title: An Introduction to Functors and Sheaves**

**Seminar**

**Speaker: Brad Dart, Memorial University**

**Title: **An Introduction to Categories and Morphisms

**Seminar**

**Speaker: **Dr. Philip R. Heath, Memorial University

**Title: **Groupoids and relations among Reidemeister and among Nielsen numbe**rs**

** ****Graduate Seminar**

**Speaker: **Yuan Yuan, Memorial University

**Title: **Applied Dynamics with Time Delay

**Applied Dynamical Systems Seminar**

**Speaker: ** Dr. Chunhua Ou, Memorial University

**Title: ** Global Stability of Traveling Waves for a Nonlocal Model

**Geometry Seminar**

**Speaker: **Eduardo Martinez-Pedrosa, Memorial University

**Title: ** On a theorem of Nielsen

**Colloquium**

**Speaker: **Alec Brookes, Memorial University, Dept. of German and Russian

**Title: **Non-Euclidean Geometry's Unlikely Intersection with Russian Literature

**Geometry Seminar**

**Speaker: **Gaelan Hanlon

**Title: **Subgroups of Hyperbolic Groups

**Applied Dynamical Systems Seminar**

**Speaker: **Brian Corbett, Memorial University

**Title: **Limit Cycles in Dynamical Systems

**Graduate Seminar**

**Speaker: **Isam Al-Darabsah, MUN

**Title: **Max-algebra

**Colloquium**

**Speaker: **Dr. Scott MacLachlan,Tufts University, Boston (Spousal Hire Candidate)

**Title: **Algebraic multigrid in theory and practice

**Geometry Seminar**

**Speaker: **Hari Kunduri, Memorial University

**Title: **Geometric inequalities in Riemannian manifolds II

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Xiaoqiang Zhao, Memorial University

**Title: **Traveling Waves for Monotone Semiflows with Weak Compactness

**Graduate Seminar**

**Speaker: **Richard Hanlon, Memorial University

**Title:**Dimension of Groups

**Geometry Seminar**

**Speaker: **Hari Kunduri, Memorial University

**Title:** Geometric inequalities in Riemannian manifolds

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Xiang-Sheng Wang

**Title: **Asymptotic Analysis and Applications

**Graduate Seminar in Mathematics**

**Speaker: **Julie Rose

**Title: **A Mathematical Model of the Human Sleep-Wake Cycle

**Distinguished Colloquium**

**Speaker: **Professor Mark Sapir

**Title: **Algorithmically Complicated Groups

**AAC's Mini Course on Combinatorial Group Theory**

**Speaker: **Professor Mark Sapir, Department of Mathematics, Vanderbilt University

**Title: **Combinatorial GroupTheory

** **

**Geometry Seminar**

**Speaker: **Tom Baird, Memorial University

**Title: **Symplectic geometry and quantum field theory IV: Yang-Mills over a Riemann Surface.

**Applied Dynamical Systems seminar**

**Speake**r: Dr. Shu Zhang, PDF, Memorial University

**Geometry Seminar**

**Speaker: **Tom Baird, Memorial University

**Title: **Symplectic geometry and quantum field theory III: Topology of symplectic quotients.

**Graduate Seminar in Mathematics**

**Speaker: **Huadong Su, Memorial University

**Title: **The unit graph of a ring

**Math Seminar**

**Speaker: **Tom Baird, Memorial University

**Title: **Symplectic Geometry and Quantum Field Theory II: Loop spaces and the Dirac operator

**Applied Dynamical Systems seminar**

**Speaker: **Dr. Shu Zhang, PDF, Memorial University

**Title: **Stability Switch Boundaries in an Internet Congestion Model with Diverse Time Delays

**Graduate Seminar in Matematics**

**Speaker**: Ning Zhang

**Title**: Isoperimetric Inequality for k-Hessian Capacity

**Research Talk**

**Speaker: **Dr. Yildiz Yilmaz, Dalla Lana School of Public Health, University of Toronto and Samuel Lunenfeld Research Institute, Mount Sinai Hospital

**Title: **Methods for Analyzing Sequential Survival Times with Applications in Cancer Studies

**Graduate Seminar in Mathematics**

**Speaker: **Sadegheh Haghshenas (PH.D Candidate), Memorial University

**Title: **Constructing the Spectrum of Packings for theComplete Graph with 4-stars

**Seminar**

**Speaker: Tom Baird, Memorial University**

**Title: **Symplectic Geometry and Quantum Field Theory I

**Departmental Colloquium**

**Speaker: **Dr. Benoit Collins, University of Ottawa

**Title: **Quantum information, free probability and random matrices

**Departmental Colloquiu****m**

**Speaker: **Dr. Hongying Shu

**Title: **Viral Infection Dynamics: A Global Analysis

**Graduate Seminar in Mathematics**

**Speaker: **Dr. Hari Kunduri, Memorial University

**Title: **Einstein Manifolds and Black Hole horizons

**Departmental Colloquium **** **

**Speaker: ** Dr. Ion Nechita, University Paul Sabatier

**Title: **Positive and completely positive maps via freeadditive powers of probability measures

**Fall 2012**

**Algebra Seminar**

**Speaker: **Dr Hamid Usefi, Memorial University

**Title: **Lie solvable enveloping algebras

**Graduate Seminar**

**Speaker**: Dr. Ronald Haynes

**Colloquium**

**Speaker: **Candemir Cigsar, Women's College Research Institute - Ontario

**Title: **Testing for Trend and Carryover Effects in Recurrent Events

**Departmental Colloquium**

**Speaker**: Dr. Bin-Guo Wang

**Title**: Basic Reproduction Ratios for Almost Periodic Compartmental Epidemic Models

**Colloquium**

**Speaker: **Dr. Jeffrey Andrews, University of Guelph

**Title:** Model-based learning: t-families, variable selectionand parameter estimation

**Statistics Colloquium**

**Speaker: **Dr. Noel Cadigan, MUN

**Applied Dynamical Systems seminar**

**Speaker: **Xiao Yu, Memorial University

**Title: **Qualitative analysis of a model for co-cultureof bacteria and amoebae

**Alegebra Seminar**

**Speaker: **Serkan Sutlu** **

**Title: **Hopf-cyclic cohomology of Lie-Hopf algebras

**Graduate Seminar**

**Speaker: **Daniela Silvesan (Ph.D Candidate) Memorial University

**Title: **Cyclic Block Designs with Block Size 3 from Skolem-Type Sequences

**AAC Colloquium**

**Speaker: **Farid Aliniaeifard and Yuanlin Li** **

**Title: ** Zero-divisor Graphs of Group Rings

**Algebra Seminar**

**Speaker: ** Mikhail Kotchetov, Memorial University

**Title: **Counting fine gradings on matrix algebras and on classical simple Lie algebras II"

**Applied Dynamical Systems Seminar**

**Speaker: **Yuxiang Zhang, PhD candidate, Memorial University

**Title: **Spatial Dynamics of A Reaction-Diffusion Model with Distributed Delay

**Graduate Seminar in Mathematics**

**Speaker: **Dr. Xiaoqiang Zhao, Memorial University

**Title: **The Dynamical Systems Approach to Differential Equations

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Amy Hurford, Memorial University

**Combinatorics Seminar**

**Speaker: **Dr. Gena Hahn, Universite de Montreal** **

**Title: **Cops and Robbers on Graphs Finite and Infinite

**Algebra Seminar**

**Speaker: **Mikhail Kotchetov

**Title: Counting fine gradings on matrix algebras and on classical simple Lie Algebras**

**Graduate Seminar**

**Spealer: Jie Xiao, Memorial University**

**Title: **A Yau Problem for Variational Capacity

**Applied and Computational seminar**

**Speaker: **Jahrul Alam**,** Memorial university** **

**Title: ** Multiscale modelling of fluid migration in subsurface aquifers

**Graduate Seminar in Mathematics**

**Speaker: **Dr Hamid Usefi, Memorial University

**Title: **Associative vs Non-Associative Algebras

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Yuan Yuan

**Title: **Homogeneous auxin steady states and spontaneous oscillations in flux-based auxin transport models

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Xiaoqiang Zhao, Memorial University

**Title: **A Reaction-Diffusion Model of Rabies withSpatial Heterogeneity

**Colloquium**

**Speaker: **Antonina Kolokolova

**Title**: How hard is proving hardness? Logic approach to barriers in complexity

**Computional Math Seminar**

**Speaker: **Vandad Talimi, Memorial University** **

**Title: **Numerical Modeling of Segmented Flows at Microscales

**Colloquium**

**Speaker**: Benjamin Smith, McGill University

**Title:** Singular G-monopoles

**Graduate Seminar in Mathematics**

**Speaker: **Dr. Jahrul Alam, Memorial University

**Title: **An introduction to modelling nanofluidics technology

**Computational and Applied Math**

**Speaker: **Polina Zheglova,Earth Science, MUN

**Title: **2D level set travel time inversion

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Xiaoqiang Zhao, Memorial University

**Title: **Principal Eigenvalues and Basic Reproduction Numbers for Reaction-Diffusion Models

**Applied Dynamical Systems Seminar**

**Speaker: **Chunhua Ou, Memorial University

**AAC Mini Course**

**Speaker: **Professor Alexander Guterman, Department of Mechanics and Mathematics Moscow State University, Russia

**Title: **Tropical linear algebra and its applications

**Applied Dynamical Systems Seminar**

**Speaker: **Xiang-Sheng Wang, Memorial University

**Title: **Travelling wave solutions of a diffusive SIR modelwith media impact

**Algebra Seminar**

**Speaker: ** Yuri Bahturin, Memorial University

**Title: ** Group gradings on nilpotent Lie algebras

**Spring 2012**

**Seminar**

**Speaker: **David Tian

**Algebra Seminar**

**Speaker: **Ian Payne

**Title: **A Short Introduction to Universal Algebra** **

**Speaker:** Leandro Vendramin** **

**Title: **Nichols algebras with many quadratic relations

**Departmental Colloquium**

**Speaker:**Weihua Jiang** **

**Title: **Codimension-two Bifurcations in Neutral Functional Differential Equations

**Algebra Seminar**

**Speaker:**Nicolas Andruskiewitsch

**Title:**From Hopf algebras to tensor categories

**Departmental Colloquium**

**Speaker: **Nicolas Andruskiewitsch** **

**Title: **The classification problem for finite-dimensional Hopf algebras

**Algebra Seminar**

**Speaker: **Dr. Csaba Schneider (CAUL, Universidade de Lisboa, Portugal)

**Title: ** Constructive membership testing in classical groups

**Public Lecture**

**Speaker:** Dr. Robert Mann,University of Waterloo and the Perimeter Institute

**Title: **The Lighter Side of Black Holes

**Colloquium**

**Speaker: **Daniel Horsley, Monash University

**Title: **Compressed sensing and hash families

**Algebra Seminar**

**Speaker: **Alexey Gordienko, Memorial University

**Title: **Amitsur's conjecture for polynomial H-identitiesof H-module Lie algebras

**Algebra Seminar**

**Speaker: **Alexey Gordienko, MUN

**Title: **Structure of H-(co)module Lie algebras

**Winter 2012**

**Honours Presentation Day**

**Computational and Applied Math Seminar (CAM)**

**Speaker: **Dr. Tomasz Danek, Department of Earth Sciences

**Title: **Global optimization and Bayesian inversion for finding effective elasticity tensors

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Binguo Wang,Lanzhou University

**Title:**Limit Set Trichotomy and Dichotomy for Skew-Product Semiflows with Application

**Combinatorics Seminar**

**Speaker: **Dr. Ryan Tifenbach, Memorial University

**Title:** Spectral Graph Theory II

**Computational and Applied Mathematics Seminar**

**Speaker: **Dr. Thomas Humphries, Memorial University

**Title: **Simultaneous optimization of well placement and control using ahybrid global-local strategy

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Rui Peng, Memorial University

**Combinatorics Seminar**

**Speaker: **Rebecca Milley, Dalhousie University

**Title: **Lessons in Losing: An Introduction to Misere Game Theory

**Applied Dynamical Systems Seminar**

**Speaker: **Yuxiang Zhang, Memorial University.

**Title: **A reaction-diffusion Lyme disease model with seasonality

**Colloquium**

**Speaker: **Dan Ramras,New Mexico State University--Las Cruces

**Title:** Large-scale geometry and group rings.

**GTAP Seminar**

**Speaker: **Dan Ramras,New Mexico State University - Las Cruces

**Title: **Spaces of representations and the topologicalAtiyah-Segal transformation.

**Computational and Applied Mathematics Seminar**

**Speaker: **Ronald Haynes, Memorial University

**Title: **Computing Matrix Inverses - another look

**Computational and Applied Mathematics Seminar**

**Speaker: **Dr. Thormod Johansen, Faculty of Engineering and Applied Science/Earth Science Professor and Canada Research Chair

**Title:** A Modular Approach to Integrated Modeling ofAdvanced Wells

**Algebra Seminar**

**Speaker: **Alexey Gordienko, Memorial University

**Title: **Graded polynomial identities, group actions, Hopf module algebras, and exponential growth

**Applied Dynamical Systems Seminar**

**Speaker: Yuan Yuan, Memorial University**

**Title: **A non-nitrogen-fixing/nitrogen-fixing phytoplankton growth model with nutrient and light

**Computational and Applied Mathematics Seminar**

**Speaker: **Dr. Thomas Humphries, Memorial University

**Title:**Simultaneous optimization of well placement and control using a hybrid global-local strategy

**Applied Dynamical Systems Seminar**

**Speaker: **Hermann Brunner,MUN, Hong Kong Baptist University

**Title: **Finite-time blow-up of solutions to semilinear parabolic integro-differential equations'

**GTAP Seminar**

**Speaker:** Dr. Zhuang Niu,Memorial University

**Title:** The Index map for the C*-algebras of a homeomorphism on the Cantor set with finitely minimal subsets

**AAC Mini Course**

**Speaker: **Professor Vladimir Shpilrain, Department of Mathematics The City College of New York

**Title: **Non-commutative cryptography

**Applied Dynamical Systems Seminar**

**Speaker: **Jinyong Ying,Memorial University

**Title: **Equivariant Bifurcation in a Symmetrical RingNetwork with Delay

**Computational and Applied Mathematics Seminar**

**Speaker: **Dr Martin Plumer,Physics and Physical Oceanography, Memorial University

**Title: **"NEW PARADIGMS IN MAGNETIC RECORDING: UNDERSTANDING THROUGH MICROMAGNETIC MODELING."

**Algebra Seminar**

**Speaker: **Edgar Goodaire,Memorial University

**Title: **Jordan Loops and Loop Rings: A Mix of Combinatorics and Algebra

**Applied Dynamical Systems Seminar**

**Speaker: **Yi Zhang, Memorial University

**Title: **Travelling wavefronts of non-local reaction-diffusion models for cell adhesion and cancer invasion

**Seminar**

**Speaker: **Dr Martin Plumer, Chair of the Computational Science program.

**Title: **"NEW PARADIGMS IN MAGNETIC RECORDING: UNDERSTANDING THROUGH MICROMAGNETIC MODELING."

**AAC Colloquium**

**Speaker: **Eduardo Martinez-Pedroza, MUN

**Title: **Residual finiteness, subgroup separabilityand non-positively curved groups

**Applied Dynamical Systems Seminar**

**Speaker: **Zhen Wang, Memorial University

**Title: **Global Dynamics of A Time-DelayedDengue Transmission Model

**Seminar**

**Speaker: **Thomas Humphries,Memorial University

**Title: **Temporal regularization and artifact correction in singleslow-rotation dynamic SPECT

**GTAP Seminar**

**Speaker: **Wei Sun, Memorial University

**Title: **Crossed product C*-algebras and minimal dynamical systems

**Computational and Applied Mathematics Seminar**

**Speaker:** Dr. Iakov Afanassiev, Physics and Physical Oceanography

**Title:** Laboratory Experiments in the Rotating Fluid Using Altimetric Image Velocimetry

**Mathematics Seminar**

**Speaker: **Dr. Jie Xiao, Mathematics & Statistics, MUN

**Title:** Isoperimetry for Semilinear Torsion Problems in Riemannian two-manifolds

**Computational and Applied Mathematics Seminar**

**Speaker: **Dr. Colin Farquharson, Earth Science, MUN

**Title:** A Story About Electromagnetics, Integral Equations, and Scale Models

**Applied Dynamical Systems Seminar**

**Speaker:** Dr. X. Zhao, Memorial University

**Title: **Some remarks on Periodic Solutions for Functional Differential Equations

**Algebra Seminar**

**Speaker: **Mikhail Kotchetov

**Title: **Weyl groups of fine gradings

**Applied Dynamical Systems Seminar**

**Speaker: **Dr. Etienne Farcot,

(INRIA Sophia Antipolis Mediterranee in the Virtual Plants team, France)

**Title: **Patterns Induced by Active Transport in Cellular Tissues

**Departmental Colloquium**

**Speaker: **Dr. Rongsong Liu, University of Wyoming

**Title: **Spatiotemporal Mutualistic Model for Mistletoes and Birds

**Informal Discussion**

**Speaker: **Andrew Critch, University of California - Berkeley

**Title:** How algebraic geometry can improve machine learning (an informal discussion)