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Geometric Analysis and Partial Differential Equations Seminar

August 12, 2016 @ 10:30 am - 12:30 pm

Geometric Analysis and Partial Differential Equations Seminar Series at UOW
Speaker

Dr Wolfgang Globke (University of Adelaide)

Title

Compact homogeneous manifolds with indefinite metric

Abstract

This talk is about homogeneous manifolds M equipped with a pseudo-Riemannian (i.e. indefinite) metric tensor, such that M = G/H for a Lie group G which acts transitively and isometrically on M, where H is a cocompact subgroup of G. We will see how density properties of H restrict the structure of G and the metric on M. A first special case are those M with solvable group G. Here, it turns out that H is a lattice in G and M is a locally symmetric space. This leads to the case of groups G of arbitrary types, which is complicated by the existence of compact semisimple factors. I will also briefly address the existence of Einstein metrics in this class of manifolds. This talk is based on joint works with Oliver Baues, Yuri Nikolayevsky and Abdelghani Zeghib.

Details

Date:
August 12, 2016
Time:
10:30 am - 12:30 pm
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Venue

Building 39C Room 174
University of Wollongong
Wollongong, 2500
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