Global weak solutions of the Teichmüller harmonic map flow into general targets

We analyse finite-time singularities of the Teichm¨uller harmonic map flow – a natural gradient flow of the harmonic map energy – and find a canonical way of flowing beyond them in order to construct global solutions in full generality. Moreover, we prove a noloss-of-topology result at finite time,...

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Bibliographic Details
Main Authors: Rupflin, ME, Topping, PM
Format: Journal article
Published: Mathematical Sciences Publishers 2018
Description
Summary:We analyse finite-time singularities of the Teichm¨uller harmonic map flow – a natural gradient flow of the harmonic map energy – and find a canonical way of flowing beyond them in order to construct global solutions in full generality. Moreover, we prove a noloss-of-topology result at finite time, which completes the proof that this flow decomposes an arbitrary map into a collection of branched minimal immersions connected by curves.