Hostname: page-component-84b7d79bbc-5lx2p Total loading time: 0 Render date: 2024-08-01T04:58:46.738Z Has data issue: false hasContentIssue false

The Dirichlet problem for harmonic maps from the disc into the 2-sphere

Published online by Cambridge University Press:  14 November 2011

Alain Soyeur
Affiliation:
Laboratoire d'Analyse Numérique, Université de Paris-Sud, 91405 Orsay Cedex, France

Synopsis

We consider the Dirichlet problem for harmonic maps from the disc D2 into the sphere S2, with prescribed boundary values γ:∂D2→S2, and we prove that if γ is not a rational function, one can find infinitely many nonhomotopic harmonic maps which agree with γon ∂D2.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1989

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1Brezis, H. and Coron, J. M.. Large solutions for harmonic maps in two dimensions. Comm. Math. Phys. 92 (1983), 203215.CrossRefGoogle Scholar
2Jost, J.. Harmonic Mappings between Surfaces, Lecture Notes in Mathematics 1062 (Berlin: Springer, 1984).Google Scholar
3Jost, J.. The Dirichlet problem for harmonic maps from a surface with boundary onto a 2-sphere with nonconstant boundary values. J. Differential Geom. 19 (1984), 393401.CrossRefGoogle Scholar
4Lions, P. L.. The concentration compactness principle in the calculus of variations. Thelimit case, part 2. Rev. Mat. Iberoamericana 1 (1985), 45121.CrossRefGoogle Scholar
5Morrey, C. B.. Multiple integrals in the calculus of variations (New York: Springer, 1966).CrossRefGoogle Scholar
6Schoen, R. and Uhlenbeck, K.. Boundary regularity and the Dirichlet problem for harmonic maps. J. Differential Geom. 18 (1983), 253268CrossRefGoogle Scholar