The heat flow and harmonic maps between complete manifolds

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We consider the existence, uniqueness and convergence for the long time solution to the harmonic map heat equation between two complete noncompact Riemannian manifolds, where the target manifold is assumed to have nonpositive curvature. As an application, we solve the Dirichlet problem at infinity for proper harmonic maps between two hyperbolic manifolds for a class of boundary maps. The boundary map under consideration has finite many points at which either it is not differentiable or has vanishing energy density.

Original languageEnglish (US)
Pages (from-to)485-514
Number of pages30
JournalJournal of Geometric Analysis
Issue number3
StatePublished - 1998


  • Energy density
  • Harmonic map
  • Heat flow
  • Hyperbolic space
  • Tension field


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