English

Jordan homomorphisms and harmonic mappings

Algebraic Geometry 2024-02-13 v1 Rings and Algebras

Abstract

We show that each Jordan homomorphism RRR\to R' of rings gives rise to a harmonic mapping of one connected component of the projective line over RR into the projective line over RR'. If there is more than one connected component then this mapping can be extended in various ways to a harmonic mapping which is defined on the entire projective line over RR.

Keywords

Cite

@article{arxiv.1304.0178,
  title  = {Jordan homomorphisms and harmonic mappings},
  author = {Andrea Blunck and Hans Havlicek},
  journal= {arXiv preprint arXiv:1304.0178},
  year   = {2024}
}
R2 v1 2026-06-21T23:51:05.683Z