- BIMSA 广义相对论讨论班

Stability for relativistic fluids on slowly expanding cosmological spacetimes

组织者

Piotr Chrusciel , Puskar Mondal , 赵博文

演讲者

Zoe Wyatt

时间

2026年05月19日 16:30 至 17:30

地点

A3-3-201

线上

Zoom 712 322 9571 (BIMSA)

摘要

On a background Minkowski spacetime, the Euler equations (both relativistic and not) are known to admit unstable homogeneous solution 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, based on collaborations with David Fajman, Maciej Maliborski, Todd Oliynyk and Max Ofner.