English

Explicit harmonic morphisms and $p$-harmonic functions from the complex and quaternionic Grassmannians

Differential Geometry 2023-08-22 v5

Abstract

We construct explicit complex-valued pp-harmonic functions and harmonic morphisms on the classical compact symmetric complex and quaternionic Grassmannians. The ingredients for our construction method are joint eigenfunctions of the classical Laplace-Beltrami and the so called conformality operator. A known duality principle implies that these pp-harmonic functions and harmonic morphisms also induce such solutions on the Riemannian symmetric non-compact dual spaces.

Keywords

Cite

@article{arxiv.2007.14819,
  title  = {Explicit harmonic morphisms and $p$-harmonic functions from the complex and quaternionic Grassmannians},
  author = {Elsa Ghandour and Sigmundur Gudmundsson},
  journal= {arXiv preprint arXiv:2007.14819},
  year   = {2023}
}
R2 v1 2026-06-23T17:29:36.887Z