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Sandra Huppert

Oberseminar Differentialgeometrie: Alix Deruelle (Universität Paris-Saclay), Vortrag: Title: Ancient solutions to the Ricci flow coming out of spherical orbifolds: (joint work with Tristan Ozuch)

Monday, 01.07.2024 16:00 im Raum SRZ 214

Mathematik und Informatik

Abstract: Given a 4-dimensional Einstein orbifold that cannot be desingularized by smooth Einstein metrics, we investigate the existence of an ancient solution to the Ricci flow coming out of such a singular space. In this talk, we will focus on singularities modeled on a cone over RP3 that are desingularized by gluing Eguchi-Hanson metrics to get a first approximation of the flow. We show that a parabolic version of the corresponding obstructed gluing problem has a smooth solution: the bubbles are shown to grow exponentially in time, a phenomenon that is intimately connected to the instability of such orbifolds.



Angelegt am 07.03.2024 von Sandra Huppert
Geändert am 19.06.2024 von Sandra Huppert
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