Global solutions of the Teichmueller harmonic map flow
Geometric Flows in Riemannian and Complex Geometry May 02, 2016 - May 06, 2016
Location: MSRI: Simons Auditorium
harmonic maps
Riemannian geometry
complex geometry
geometric analysis
geometric flow
Ricci flow
diffeomorphism groups
singularities of flows
53C44 - Geometric evolution equations (mean curvature flow, Ricci flow, etc.)
53C43 - Differential geometric aspects of harmonic maps [See also 58E20]
53C56 - Other complex differential geometry [See also 32Cxx]
30F45 - Conformal metrics (hyperbolic, Poincaré, distance functions)
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The Teichmueller harmonic map flow is a gradient flow of the classical harmonic map energy, in which both a map from a surface and the metric on that surface are allowed to evolve. In principle, the flow wants to find minimal immersions. However, in general, the domain metric might degenerate in finite time. In this talk we show how to flow beyond finite time singularities, and this allows us to decompose a general map into a collection of minimal immersions.
This is forthcoming work joint with Melanie Rupflin
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