Monday, November 9, 2026 - 00:00 in Online
Dynamics of the Einstein equations around expanding cosmological spacetimes
A talk in the Oberseminar Analysis series by
Mahdi Haghshenas from Münster
| Abstract: |
We introduce the standard cosmological models in general relativity, namely FLRW spacetimes, which represent the homogeneity and isotropy of the universe on large scales and exhibit cosmic expansion. After outlining the stability problem for slowly expanding FLRW spacetimes, we explain the role of the wave equation in this problem and demonstrate how dispersion and expansion affect the long-time behaviour of waves. Finally, a stability result for such FLRW spacetimes in the spherically symmetric regime will be presented.
Zoom link:
https://uni-bielefeld.zoom-x.de/j/67693892360?pwd=u5bL8bzpOxFTwMd16V8tZAkB8YAgbv.1
Meeting-ID: 676 9389 2360
Password: 378676
Within the CRC this talk is associated to the project(s): A1 |
Back
