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Universität Augsburg
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Universität Augsburg
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Professor Dr. Demetre Kazaras
Michigan State University
spricht am
Montag, 1. Juli 2024
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16 Uhr s.t.
im
Raum 2004 (L1)
über das Thema:
| Abstract: |
| This talk is about the structure of Riemannian 3-manifolds satisfying a lower bound on their scalar curvature. These manifolds are toy models for spatial geometry in general relativity. I will discuss a "drawstring" construction, which modifies a manifold near a given curve, reducing its length with negligible damage to a scalar curvature lower bound. This extends ideas of Basilio-Dodziuk-Sormani and Lee-Naber-Neumayer. The drawstrings produce unexpected examples with relevance to a few areas, including the question "How flat is an isolated gravitational system with very little total mass?" This is based on joint work with Kai Xu. |
| Hierzu ergeht herzliche Einladung. |
| Prof. Dr. Bernhard Hanke |
Kaffee, Tee und Gebäck eine halbe Stunde vor Vortragsbeginn im Raum 2006 (L1).