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Proceedings of the American Mathematical Society

ISSN 1088-6826(online) ISSN 0002-9939(print)



Harmonic 2-spheres
with $r$ pairs of extra eigenfunctions

Author: Motoko Kotani
Journal: Proc. Amer. Math. Soc. 125 (1997), 2083-2092
MSC (1991): Primary 49F10; Secondary 58E20
MathSciNet review: 1372035
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Abstract: In the present paper, deformations of harmonic 2-spheres in the unit $n$-sphere $S^{n}$ respecting the degree are studied. The limit maps of such deformations are characterized as harmonic maps with extra eigenfunctions. The space $Harm_{d}(S^{2},S^{n})$ of harmonic 2-spheres in $S^{n}$ with fixed degree $d$ is described in terms of such deformations and the limit maps.

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Additional Information

Motoko Kotani
Affiliation: Department of Mathematics, Faculty of Sciences, Toho University, Funabashi, Chiba, 274, Japan

Keywords: Harmonic 2-spheres, extra eigenfunctions, null curves
Received by editor(s): October 24, 1995
Received by editor(s) in revised form: February 1, 1996
Communicated by: Peter Li
Article copyright: © Copyright 1997 American Mathematical Society