BIMSA > BIMSA General Relativity Seminar BIMSA General Relativity Seminar Stability for relativistic fluids on slowly expanding cosmological spacetimes
Stability for relativistic fluids on slowly expanding cosmological spacetimes
Organizers
Piotr Chrusciel , Puskar Mondal , Bowen Zhao
Speaker
Zoe Wyatt
Time
Tuesday, September 29, 2026 4:30 PM - 5:30 PM
Venue
Tsinghua-Jingzhai-105
Online
Zoom 712 322 9571 (BIMSA)
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 expansion, which are relevant in our early universe, are not as well understood. I will present some recent joint work in this direction.