Vortrag von Joe Wyatt (Kings College London) mit dem Titel „Relativistic fluids on slowly expanding cosmologies“

Das Seminar findet in B7-309 - Seminarraum B [Mathematik]

"Relativistic fluids on slowly expanding cosmologies“

Abstract: On a background Minkowski geometry, the relativistic Euler equations admit unstable homogeneous solutions with finite-time shock formation. By contrast, shock formation is suppressed on cosmological spacetimes whose spatial slices expand at an accelerated rate. The fluid behaviour on geometries with the in-between expansion rates (i.e. non-accelerated expansion) is not as well understood yet relevant in our early Universe. In this talk, I will present some recent works concerning the relativistic Euler and the Einstein-Dust equations for geometries expanding at a linear rate. This is based on joint works with David Fajman (Vienna), Todd Oliynyk (Monash) and Max Ofner (Vienna).

Nachrichtenalter: 10.01.2023 10:56

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