Uniqueness and nonuniqueness of limits of Teichmüller harmonic map flow

The harmonic map energy of a map from a closed, constant-curvature surface to a closed target manifold can be seen as a functional on the space of maps and domain metrics. We consider the gradient flow for this energy. In the absence of singularities, previous theory established that the flow conver...

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Príomhchruthaitheoirí: Kohout, J, Rupflin, M, Topping, PM
Formáid: Journal article
Teanga:English
Foilsithe / Cruthaithe: De Gruyter 2020
Cur síos
Achoimre:The harmonic map energy of a map from a closed, constant-curvature surface to a closed target manifold can be seen as a functional on the space of maps and domain metrics. We consider the gradient flow for this energy. In the absence of singularities, previous theory established that the flow converges to a branched minimal immersion, but only at a sequence of times converging to infinity, and only after pulling back by a sequence of diffeomorphisms. In this paper, we investigate whether it is necessary to pull back by these diffeomorphisms, and whether the convergence is uniform as t→∞.