English

Limits of harmonic maps and crowned hyperbolic surfaces

Differential Geometry 2018-05-11 v1 Geometric Topology

Abstract

We consider harmonic diffeomorphisms to a fixed hyperbolic target YY, from a family of domain Riemann surfaces degenerating along a Teichm\"{u}ller ray. We use the work of Minsky to show that there is a limiting harmonic map from the conformal limit of the Teichm\"{u}ller ray, to a crowned hyperbolic surface. The target surface is the metric completion of the complement of a geodesic lamination on YY. The conformal limit is obtained by attaching half-planes and cylinders to the critical graph of the holomorphic quadratic differential determining the ray. As an application, we provide a new proof of the existence of harmonic maps from any punctured Riemann surface to a given crowned hyperbolic target of the same topological type.

Keywords

Cite

@article{arxiv.1805.03921,
  title  = {Limits of harmonic maps and crowned hyperbolic surfaces},
  author = {Subhojoy Gupta},
  journal= {arXiv preprint arXiv:1805.03921},
  year   = {2018}
}

Comments

28 pages, 8 figures

R2 v1 2026-06-23T01:50:52.866Z