2015 CMS Summer Meeting

University of Prince Edward Island, June 5 - 8, 2015

# Scientific Sessions

By invitation of the Meeting Committee, there will be sessions in the following areas. The list of speakers is preliminary, and participants interested in delivering a talk in one of the sessions should contact one of the organizers of that session. All scientific sessions will take place at the University of Prince Edward Island.
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 Advances in Nonlinear Partial Differential Equations Org: George Chen and Scott Rodney (Cape Breton) Saturday June 6  (106 Health Sciences Building [#3]) 15:30 - 16:00 Ming Mei (McGill), Asymptotic behavior of solutions to reaction-diffusion equations with time-delay 16:00 - 16:30 Jie Xiao (Memorial), Entropy Flux - Electrostatic Capacity - Graphical Mass 16:30 - 17:00 Brendan Pass (Alberta), Wasserstein barycenters over Riemannian manifolds 17:00 - 17:30 Xinwei Yu (Alberta), On Stationary Solutions to Doi-Onsager Models 17:30 - 18:00 Yuzhao Wang (Memorial), Nonlinear hyperbolic Shcr\"odinger equations Sunday June 7  (106 Health Sciences Building [#3]) 8:30 - 9:00 Stan Alama (McMaster), Vortex structure in p-wave superconductors 9:00 - 9:30 Lia Bronsard (McMaster), Weak Anchoring for a Two-Dimensional Liquid Crystal 9:30 - 10:00 Maxime Gazeau (Toronto), Spectral gaps and Bloch decomposition for the linearized Water-Waves equations 15:30 - 16:00 Scott Rodney (Cape Breton), A Meyers-Serrin Theorem for Degenerate Sobolev Spaces 16:00 - 16:30 Hyunju Kwon (UBC), Some norm inflation results in fluid equations 16:30 - 17:00 Yuri Cher (Toronto), Local Structure of Singular profiles for a Derivative Nonlinear Schrodinger equation 17:00 - 17:30 Robert McCann (Toronto), The instrinsic dynamics of optimal transport 17:30 - 18:00 Shaohua Chen (Cape Breton), A Singular Gierer-Meinhardt System of Elliptic Equations Contributed Papers Org: David Horrocks (UPEI) Saturday June 6  (113 Main Building [#5]) 10:00 - 10:30 Mohammad Abu Zaytoon (UNB), Flow through Layered Porous Media with Variable Permeability 10:30 - 11:00 Malak Almutairi (Acadia), Investigating Addition Tables for Digit Representations 11:00 - 11:30 Salihah Alwadani (Acadia), Genetic Algorithm 15:30 - 16:00 Muhammad Ashfaq Bokhari (King Fahd University, Saudi Arabia), On Legendre-Radau Quadrature Rule: Derivation via hypergeometric series and application 16:00 - 16:30 M.H. Hamdan (UNB), BVP Involving Inhomogeneous Airy's ODE with General Forcing Function Graduate Student Research Presentations Org: Svenja Huntemann (Dalhousie) Monday June 8  (246 McDougall Hall [#12]) 9:00 - 9:30 Shahid Khan (Calgary), Portfolio Signed Graphs 9:30 - 10:00 Ben Cameron (Dalhousie), Graph Properties, Polynomials, and Simplicial Complexes 14:00 - 14:30 Lauren DeDieu (McMaster), Newton-Okounkov Bodies of Peterson and Bott-Samelson Varieties 14:30 - 15:00 Fatimah Alruhaymi (Memorial), Skolem-type Sequences and Rosa Operators Theory on Analytic Function Spaces Org: Javad Mashreghi (Laval) Saturday June 6  (116 Main Building [#5]) 10:00 - 10:30 Nina Zorboska (Manitoba), Hyperbolic distortion, finite Blaschke products and uniform local univalence 10:30 - 11:00 Raphaël Clouâtre (Waterloo), Duality and peak interpolation for multipliers of the Drury-Arveson space 11:00 - 11:30 Bahram Rangipour (UNB), Universal Chern classes in Hopf cyclic cohomology 15:30 - 16:00 Hubert Klaja (Laval), Isometric equality between de Branges-Rovnyak spaces and weighted Dirichlet spaces 16:00 - 16:30 Myrto Manolaki (Western), A result on harmonic measure with applications to Taylor series 16:30 - 17:00 Richard Fournier (CRM), On an interpolation formula of Frappier, Rahman and Ruscheweyh 17:00 - 17:30 Javad Mashreghi (Laval), A group structure on $\mathbb{D}$ and its application for composition operators on model spaces Reaching our Students: Increased Participation and Persistence in First-Year Mathematics Courses Org: Darja Kalajdzievska (Manitoba) and Gordon MacDonald (UPEI) Education Session Saturday June 6  (237 Kelley Building [#11]) 10:00 - 10:30 Darja Kalajdzievska and Lindsay Wessel (Manitoba), Rethinking Course Structure 10:30 - 11:00 Gerda de Vries (Alberta), Tales from the Trenches: Blended Learning in a Calculus Class at the University of Alberta 11:00 - 11:30 Rebecca Milley (Grenfell Campus, Memorial), Flipping it: the inverted calculus classroom 15:30 - 16:00 Pamini Thangarajah (Mount Royal), Ideas for student Projects in Elementary Linear Algebra 16:00 - 16:30 Bryan Penfound (Winnipeg), Explain the Method - The Use of Video Assignments for Pre-service Teachers 16:30 - 17:00 Robert Craigen (Manitoba) 17:00 - 17:30 David Bressoud (Macalester), Insights from the MAA Study of College Calculus Sunday June 7  (237 Kelley Building [#11]) 8:00 - 8:30 Gordon MacDonald (UPEI), Ideas for reaching uninterested Calculus students 8:30 - 9:00 Danny Dyer (Memorial), How I spent my Fall semester: experiences with active learning in Calculus I 9:00 - 9:30 Margo Kondratieva (Memorial), Ways of reaching our students with different technological tools 9:30 - 10:00 [Group] Math Ed. Round Table Discussion Undergraduate Student Research Presentations Org: Nathan Musoke (Waterloo) With the support of the Science Atlantic Mathematics and Statistics Committee, funding is available to partially fund the travel and accommodation costs for undergraduate students presenting a talk in the Undergraduate Student Research Presentations session. Preference is given to Canadian students studying at a Canadian or other university. For presentation and funding inquires related to this session, please contact the Session Organizer at studc-summer15-undergrad@cms.math.ca. Sunday June 7  (246 McDougall Hall [#12]) 8:30 - 9:00 Leah Duffett (Mount Allison), The Geometric Quantization of a Focus-Focus Singularity 9:00 - 9:30 Emily Rosta (Cape Breton), Existence of Weak Solutions to a Non-Linear Dirichlet Problem 15:30 - 16:00 Emma Carline (Dalhousie), C*-algebras of the 1-D crystal groups: Initial explorations 16:00 - 16:30 Dario Brooks (Dalhousie), The equivalence problem and three-dimensional Szekeres metrics 16:30 - 17:00 Kyle Bryenton (UPEI), On the Darboux-Crum Transformation and Supersymmetric Quantum Mechanics
 C*-algebras Org: Cristian Ivanescu (Alberta) and Dan Kucerovsky (UNB) AARMS-CMS Session Saturday June 6  (213 Main Building [#5]) 10:00 - 11:00 Ping Wong Ng (Lousiana) 11:00 - 11:30 Sutanu Roy (Ottawa), Slices of braided multiplicative unitaries. 15:30 - 16:30 Michel Hilsum (Paris 7 / Jussieu) 16:30 - 17:00 Dilian Yang (Windsor), Maximal abelian subalgebras in higher rank graph C*-algebras 17:00 - 17:30 Gordon MacDonald (UPEI), Faster Matrix Multiplication Sunday June 7  (213 Main Building [#5]) 8:00 - 8:30 Ana Savu (Alberta), Spectral gap of a class of unbounded, positive-definite operators 8:30 - 9:00 Man-Duen Choi (Toronto), How I could think of tensor products of matrices 9:00 - 10:00 Andrew Toms (Purdue) 15:30 - 16:00 Cristian Ivanescu (Alberta), The Cuntz semigroup of tensor product of C*-algebras 16:00 - 16:30 Dan Kucerovsky (UNB), K-theory of C*-bialgebras 16:30 - 17:00 Magdalena Georgescu (Toronto), Spectral Flow and C*-algebras 17:00 - 17:30 Aydin Sarraf (UNB), On the classification of inductive limits of certain real circle algebras Dynamical Systems with Applications to Biology and Ecology Org: Lin Wang (UNB) and Yuan Yuan (Memorial) AARMS-CMS Session Saturday June 6  (104 Health Sciences Building [#3]) 10:00 - 10:30 Gail Wolkowicz (McMaster), Sensitivity of the Rosenzweig--MacArthur model to the form of the functional response: a bifurcation theory approach 10:30 - 11:00 Xiao Wang (National University of Defense Technology), Periodic and almost periodic oscillations in a disease system modeling the transmission of infectious diseases in migrants' home 11:00 - 11:30 Ali Gharouni (UNB), Recent application of spreading speed theory to the green crab invasion in Atlantic Canada 15:30 - 16:00 James Watmough (UNB), Ecological models with multiple stable states 16:00 - 16:30 Chunhua Shan (Alberta), Turning points and relaxation oscillations in epidemic models of SIR type 16:30 - 17:00 Yanyu Xiao (Alberta), Impact of viral drift on vaccination dynamics and patterns of seasonal influenza 17:00 - 17:30 Wenjing Zhang (York), Recurrent viral infection may need no exogenous trigger Sunday June 7  (104 Health Sciences Building [#3]) 7:30 - 8:00 Isam Al-Darabsah (MUN), A Prey-Predator Model with n Patches, Migrations and Delays. 8:00 - 8:30 Huaiping Zhu (York), A temperature driven difference equation model with stage-structured for the abundance of culex mosquitoes 8:30 - 9:00 Yun Tian (Shanghai Normal University), HIV-1 dynamics of fighting a virus with another virus 9:00 - 9:30 Xiaodi Li (Shandong Normal University), Stability of FDEs with state-dependent delay of unknown bounded 9:30 - 10:00 Xiaoying Wang (Western), Modelling the trait in fear of predators Ergodic Theory, Dynamical systems and Applications Org: Pawel Gora (Concordia) and Shafiqul Islam (UPEI) AARMS-CMS Session Saturday June 6  (328 McDougall Hall [#12]) 10:00 - 10:30 Erik Bollt (Clarkson University, USA), A measurable perspective on finite time coherence 10:30 - 11:00 Jacopo De Simoi (Toronto), Decay of correlations in fast-slow partially hyperbolic systems 11:00 - 11:30 Pawel Gora (Concordia), Maps with Memory 15:30 - 16:00 James A Yorke (Maryland), Computing Quasiperiodic Orbits 16:00 - 16:30 Gerda de Vries (Alberta), A Model of Microtubule Organization in the Presence of Motor Proteins 16:30 - 17:00 Israel Ncube (Alabama A & M University), Stability of a certain quasi-polynomial Sunday June 7  (328 McDougall Hall [#12]) 8:00 - 8:30 Franklin Mendivil (Acadia), Iteration of time-dependent random functions 8:30 - 9:00 Marlene Frigon (Montreal), Multiple solutions of problems with nonlinear first order differential operators 9:00 - 9:30 Tobias Hurth (Toronto), Regularity for invariant densities of switching systems 9:30 - 10:00 Arno Berger (Alberta), Most finite-dimensional linear flows are Benford 15:30 - 16:00 Huaiping Zhu (York), Nilpotent singularities and oscillations in SIR type of compartmental models 16:00 - 16:30 Elena Braverman (Calgary), Stochastic difference equations with the Allee effect 16:30 - 17:00 Shafiqul Islam (UPEI), Stochastic perturbations and invariant measures of position dependent random maps via Fourier approximations 17:00 - 17:30 Laurent Charette (UBC), Reaction-Diffusion Mixed Modes on a Spherical Cap Monday June 8  (328 McDougall Hall [#12]) 8:00 - 8:30 Anatoliy Swishchuk (Calgary), Delay Stochastic Dynamical Systems in Finance 8:30 - 9:00 Sanjeeva Balasuriya (University of Adelaide, Australia), Analogues of eigenvectors and their control in nonautonomous flows 9:00 - 9:30 Tomoki Inoue (Ehime University, Japan), First return maps of random maps and invariant measures Games and Pursuit Games on Graphs Org: Richard Nowakowski (Dalhousie) AARMS-CMS Session Saturday June 6  (117 Main Building [#5]) 10:00 - 10:30 Neil McKay (Dalhousie), How to know if you are playing a sum of Hackenbush strings 10:30 - 11:00 Melissa Huggan (Carleton), Intersection restriction games 11:00 - 11:30 Svenja Huntemann (Dalhousie), Doppelgänger Placement Games 15:30 - 16:00 Kyle Burke (Plymouth State, New Hampshire), Two-Color Placement Games on Graphs 16:00 - 16:30 Rebecca Milley (Wilfred Grenfell), Partizan Kayles and Misere Invertibility 16:30 - 17:00 Richard Nowakowski (Dalhousie), Extending Normal-play games to Scoring-games Graphs, Designs and Hypergraphs Org: Robert Bailey (Grenfell Campus, Memorial), Andrea Burgess (UNB Saint John) and Margaret-Ellen Messinger (Mount Allison) AARMS-CMS Session Saturday June 6  (329 McDougall Hall [#12]) 10:00 - 10:30 Mateja Sajna (Ottawa), Eulerian properties of 3-uniform hypergraphs 10:30 - 11:00 Jared Howell (Grenfell Campus, Memorial), The Watchman's Walk on Block Intersection Graphs of Steiner Triple Systems 11:00 - 11:30 Robert Bailey (Grenfell Campus, Memorial), Metric dimension of distance-regular graphs: a triennial update 15:30 - 16:00 Peter Dukes (Victoria), Designs covered by small subdesigns 16:00 - 16:30 Alyssa Sankey (UNB), On association schemes constructed from $t$-fold covers of schemes 16:30 - 17:00 Peter Danziger (Ryerson), On the Hamilton-Waterloo Problem with odd orders 17:00 - 17:30 Tommaso Traetta (Ryerson), On the Hamilton-Waterloo problem for a class of Cayley graphs Sunday June 7  (329 McDougall Hall [#12]) 8:30 - 9:00 Gena Hahn (Montréal), On cycle double covers for infinite graphs 9:00 - 9:30 Eduardo Martinez-Pedroza (Memorial), Coarse Geometry of the Firefighter Problem 9:30 - 10:00 Shannon Fitzpatrick (UPEI), Cops and Robber on Circulant Graphs 15:30 - 16:00 Anthony Bonato (Ryerson), A probabilistic version of the Game of Zombies and Survivors on graphs 16:00 - 16:30 Stephen Finbow (StFX), Hamiltonicity of Bell and Stirling Colour Graphs 16:30 - 17:00 Elham Roshanbin (Dalhousie), Graph Burning 17:00 - 17:30 Kerry Ojakian (Bronx Community College, CUNY), Capture time of cop-win graphs Monday June 8  (329 McDougall Hall [#12]) 8:30 - 9:00 Nancy Clarke (Acadia), 2-Limited Packings of Cartesian Products 9:00 - 9:30 Danny Dyer (Memorial), Achieving excesses and leaves: packings and coverings of complete graphs with small trees 9:30 - 10:00 Lucas Mol (Dalhousie), Shape and roots of the node reliability polynomial 14:00 - 14:30 Robert Craigen (Manitoba), The group of odd-weight Boolean complementary pairs 14:30 - 15:00 Asiyeh Sanaei (Acadia), Generalized Dutch Windmills Skolem Labelling 15:00 - 15:30 David Pike (Memorial), Equitably Coloured BIBDs Interplay of Convexity and Geometric Analysis Org: Deping Ye and Jie Xiao (Memorial) AARMS-CMS Session Saturday June 6  (211 Kelley Building [#11]) 10:00 - 10:30 Peter Pivovarov (Missouri), Bounding marginal densities via affine isoperimetry 10:30 - 11:00 AiJun Li (Henan Polytechnic), Isomorphic versions of reverse isoperimetric inequalities 11:00 - 11:30 Yuzhao Wang (Memorial), Differential inequalities on manifold 15:30 - 16:00 Almut Burchard (Toronto), Random reflections, symmetrizations, and foldings on the sphere 16:00 - 16:30 Jiazu Zhou (SouthWest University), On Bonnesen-style symmetric mixed isohomothetic inequalities 16:30 - 17:00 Cristian Enache (American University of the Middle East), Maximum and minimum principles for a class of Monge–Ampère equations, with applications to surfaces of constant Gauss curvature 17:00 - 17:30 Shaoxiong Hou (Memorial), Musielak-Orlicz BMO-Type Spaces Sunday June 7  (211 Kelley Building [#11]) 8:30 - 9:00 Ning Zhang (Alberta), Reconstruction of convex lattice sets from their projections 9:00 - 9:30 Matthew Stephen (Alberta), Stability Results for Sections of Convex Bodies 9:30 - 10:00 Deping Ye (Memorial), Affine isoperimetric inequalities for geominimal surface areas Number Theory Org: Amir Akbary (Lethbridge) and Karl Dilcher (Dalhousie) AARMS-CMS Session Saturday June 6  (243 McDougall Hall [#12]) 10:00 - 10:30 Andrew Knightly (Maine), The local equidistribution problem for Siegel modular forms 10:30 - 11:00 Alia Hamieh (Queen's), Determining Hilbert modular forms by the central values of Rankin-Selberg convolutions 11:00 - 11:30 Naomi Tanabe (Queen's), Non-vanishing of Rankin-Selberg L-functions for Hilbert Modular Forms 15:30 - 16:00 Matilde Lalín (Montreal), The Mahler measure of elliptic curves 16:00 - 16:30 Marie Langlois (Dalhousie), Elliptic Curves with Complex Multiplication and a Relation to their Quadratic Twist. 16:30 - 17:00 James Parks (Lethbridge), The average number of elliptic curves with a fixed number of points 17:00 - 17:30 Akshaa Vatwani (Queen's), A higher rank Selberg sieve Sunday June 7  (243 McDougall Hall [#12]) 8:30 - 9:00 Patrick Ingram (Colorado State), Arithmetic dynamics of correspondences 9:00 - 9:30 Graeme Turner (Carleton and Grenfell Campus, Memorial), The Conductor and Discriminant of Bicyclic Quartic Fields 9:30 - 10:00 Julian Rosen (Waterloo), Quadratic forms and curves on abelian surfaces 15:30 - 16:00 Tatiana Hessami Pilehrood (Fields Institute), On $q$-analogs of Wolstenholme's theorem for multiple $q$-harmonic sums 16:00 - 16:30 Abdullah Al-Shaghay (Dalhousie), Analogues of the Binomial Coefficient Theorems of Gauss and Jacobi 16:30 - 17:00 Kevser Aktas (Queen's), Consecutive Squarefull Numbers 17:00 - 17:30 Adam Felix (KTH Stockholm), Common divisors of the index and order of $a$ modulo $p$ 17:30 - 18:00 Omar Kihel (Brock), Denominators of algebraic numbers in a number field Monday June 8  (243 McDougall Hall [#12]) 8:30 - 9:00 Claude Levesque (Laval), On Thue equations 9:00 - 9:30 Michael Coons (Newcastle, Australia), Algebraic independence results related to an automatic sequence 9:30 - 10:00 Allysa Lumley (Lethbridge), New Bounds for $\psi(x;q,a)$ 14:00 - 14:30 Karyn McLellan (StFX), A New Computation of Viswanath's Constant 14:30 - 15:00 Rob Noble (Dalhousie), Conjugate algebraic numbers on plane curves 15:00 - 15:30 Keith Johnson (Dalhousie), Integer valued polynomials on rings of integer matrices Optimization and Nonlinear Analysis Org: Mohamed Tawhid (Thompson Rivers University) AARMS-CMS Session Saturday June 6  (105 Health Sciences Building [#3]) 10:00 - 10:30 Henry Wolkowicz (Waterloo), Noisy sensor network localization: robust facial reduction and the Pareto frontier 10:30 - 11:00 Heinz Bauschke (UBC), The Douglas-Rachford algorithm: inconsistency and finite convergence 11:00 - 11:30 Hichem Ben-El-Mechaiekh (Brock), Systems of Nonlinear Inequalities Without Convexity: A Topological Fixed Point Approach 15:30 - 16:00 Monica Cojocaru (Guelph), Bifurcations in constrained dynamics 16:00 - 16:30 Kiyoko Furuya (Ochanomizu University, Japan), On Formally Self-Adjoint Schr\"odinger operators with real potential Sunday June 7  (105 Health Sciences Building [#3]) 8:30 - 9:00 Jein-Shan Chen (National Taiwan Normal University), Discovery of new complementarity functions for NCP and SOCCP 9:00 - 9:30 Mohamed Tawhid (Thompson Rivers University), Nonlinear Conjugate Gradient Methods for the Output Feedback Pole Assignment Problem 9:30 - 10:00 Zili Wu (Xi’an Jiaotong-Liverpool University, China), Characterization of Weaker Sharp Solutions of a Variational Inequality Problem without Gap Functions 15:30 - 16:00 Afrah Abdou (King Abdulaziz University, Saudi Arabia), On Mann’s Method with Viscosity for Nonexpansive and Nonspreading Mappings in Hilbert Spaces Recent Advances in the Mathematics of Electromagnetic and Acoustic Imaging Org: Peter Gibson and Michael Haslam (York) AARMS-CMS Session Saturday June 6  (211 Main Building [#5]) 10:00 - 10:30 Mark Lyon (New Hampshire), Accelerated Algorithm for Computing Dielectric Scattering from Scatters Near an Infinite Plane 10:30 - 11:00 Nicolas Hoell (Toronto), Some Methods in Tomography 11:00 - 11:30 Peter Gibson (York), The non-linear measurement operator for scattering in layered media 15:30 - 16:00 Michael Haslam (York), A High Order Method for Electromagnetic Scattering from Metallic Gratings 16:00 - 16:30 Douglas Kurrant (Calgary), Microwave breast imaging using patient specific prior information 16:30 - 17:00 Mohammad Tavalla (York), The structure of test functions that determine weighted composition operators Rigorous Computation for Differential-Equation Problems Org: Roberto Castelli (VU Amsterdam) and Holger Teismann (Acadia) AARMS-CMS Session Sunday June 7  (113 Main Building [#5]) 8:30 - 9:00 Christian Reinhardt (VU Amsterdam), Rigorous numerics for nonlinear ODEs using Chebyshev series 9:00 - 9:30 Andréa Deschênes (Laval), Stationary coexistence of hexagons and rolls via rigorous computations 9:30 - 10:00 Roberto Castelli (VU Amserdam), Parameterization of invariant manifolds for periodic orbits of vector fields 15:30 - 16:00 Mioara Joldes (LAAS-CNRS, France), A Fast and Accurate Power Series Expansion Method to Compute the Probability of Collision for Short-term Space Encounters 16:00 - 16:30 Jacek Cyranka (U Warsaw), A construction of two different solutions to an elliptic system 16:30 - 17:00 Tomasz Kaczynski (U Sherbrooke), Towards a formal tie between combinatorial and classical vector field dynamics Singularities and Phase Transitions in the Calculus of Variations and PDE Org: Lia Bronsard and Ihsan Topaloglu (McMaster) AARMS-CMS Session Saturday June 6  (246 McDougall Hall [#12]) 10:00 - 10:30 Rustum Choksi (McGill), Nonlocal Energy Functionals Consisting of Competing Attractive and Repulsive Potentials 10:30 - 11:00 Ihsan Topaloglu (McMaster), Generalized Gradient Flows of Nonlocal Interaction Energies 11:00 - 11:30 Peter Sternberg (Indiana U), Reduced model for the hydroelastic waves in the cochlea 15:30 - 16:00 Tiziana Giorgi (New Mexico State), Sawtooth profile in smectic A liquid crystals 16:00 - 16:30 Dmitry Golovaty (U of Akron), Dimension reduction for the Landau-de Gennes model in nematic thin films. 16:30 - 17:00 Stanley Alama (McMaster), Minimizers of the Landau-de Gennes energy around a spherical colloid particle 17:00 - 17:30 Michael Gelantalis (RWTH Aachen U), Cahn-Hilliard energy barrier and $\Gamma$-convergence in a certain parameter regime

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