Piotr Bizon
Harmonic maps between three-spheres
The paper is published: Proc. R. Soc. Lond., Ser. A 451, No. 1943 (1995) 779-793

MSC:

58E20 Harmonic maps

Abstract: It is shown that
smooth maps $f: S^3 \rightarrow S^3$ contain two countable families
of harmonic representatives in the homotopy classes of degree zero
and one.

Keywords: harmonic maps, 3-sphere