Week of Events
Math Physics Seminar: Zoe Wyatt (Cambridge University)
Title: Stability for relativistic fluids on slowly expanding cosmological spacetimes Abstract: On a background Minkowski spacetime, the Euler equations (both relativistic and not) are known to admit unstable homogeneous solutions with finite-time shock formation. Such shock formation can be suppressed on cosmological spacetimes whose spatial slices expand at an accelerated rate. However situations with decelerated […]
Geometric analysis seminar: Jingwen Chen
Title: Morse theory for the area functional Abstract: Morse theory is a powerful tool for analyzing the topology of a manifold by studying the critical points of a smooth function. The theory constructs Morse homology from the space of gradient flow trajectories, which provides a topological invariant that is isomorphic to singular homology. In this talk, […]