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  • Atlantic GR Seminar: Nicholas Layden (Dalhousie) and Sharmin Akhter (MUN)

    Zoom seminar

    Geometric Horizons in the Szekeres Spacetime Nicholas Layden (Dalhousie University) A new conjecture for geometric horizons has been introduced which may provide a potential alternative to using apparent horizons and related surfaces for analyzing the dynamics of black hole spacetimes.

  • AARMS COVID-19 Seminar: Amy Hurford (MUN)

    Zoom seminar

    Modelling the impact of travel restrictions on COVID-19 cases in Newfoundland and Labrador Imported infections disproportionally contribute to coronavirus disease 2019 (COVID-19) outbreaks in regions where infection prevalence is low. On May 4th, Newfoundland and Labrador implemented travel restrictions whereby

  • Dalhousie-AARMS AAMP Seminar: Michael Ward (UBC)

    Zoom seminar

    Synchrony and Oscillatory Dynamics for a 2-D PDE-ODE Model of Diffusion-Sensing with Small Signaling Compartments We analyze a class of cell-bulk coupled PDE-ODE models, motivated by quorum and diffusion sensing phenomena in microbial systems, that characterize communication between localized spatially

  • Atlantic GR Seminar: Kam To Billy Chan (MUN)

    Zoom seminar

    The Reissner-Nordstrom Near Horizon Geometry is a Tangent Spacetime The near horizon geometry (NHG) of an extremal Reissner-Nordstrom black hole is obtained in conventional global AdS coordinates and in the coordinates of the parent spacetime. Geometrical objects, specifically Killing vectors

  • Dalhousie-AARMS AAMP Seminar: John Toth (McGill University)

    Zoom seminar

    Title: Pointwise bounds for joint eigenfunctions of quantum completely integrable (QCI) systems Abstract: I will discuss some recent results on improvements in supremum bounds for joint eigenfunctions of QCI systems together with sharp exponential decay estimates away from the projections

  • Atlantic Graph Theory Seminar: David Pike (Memorial)

    Zoom seminar

    Perfect 1-Factorisations A matching in a graph $G$ is a subset $M \subseteq E(G)$ of the edge set of $G$ such that no two edges of $M$ share a vertex. A 1-factor of a graph $G$ is a matching $F$

  • Dalhousie-AARMS AAMP Seminar: Julie Rowlett (Chalmers, Sweden)

    Zoom seminar

    Decisions and Disease Do you usually get a flu shot every year? Do you usually take preventive measures to avoid contracting sexually transmitted infections? It is reasonable to expect that while many people may answer `no‘ to the first question,

  • Atlantic Graph Theory Seminar: Dr. Ben Cameron (University of Guelph)

    Zoom seminar

    Title: Families of graphs containing only finitely many vertex-critical graphs. In this talk, motivated by algorithmic aspects of graph colouring, we will consider the problem of classifying vertex-critical graphs in families of graphs. We will complete a dichotomy theorem for

  • Dalhousie-AARMS AAMP Seminar: Hari Kunduri (Memorial University)

    Zoom seminar

    Title: Geometric inequalities for axisymmetric black holes Abstract: In general relativity, isolated, dynamical black holes arise from asymptotically flat initial data for the Einstein equations. Such data are characterized by invariants such as the ADM mass and angular momentum. When angular