English

Branching problems in reproducing kernel spaces

Representation Theory 2020-12-23 v3

Abstract

For a semisimple Lie group GG satisfying the equal rank condition, the most basic family of unitary irreducible representations is the discrete series found by Harish-Chandra. In this paper, we study some of the branching laws for discrete series when restricted to a subgroup HH of the same type by combining classical results with recent work of T. Kobayashi; in particular, we prove discrete decomposability under Harish-Chandra's condition of cusp form on the reproducing kernel. We show a relation between discrete decomposability and representing certain intertwining operators in terms of differential operators.

Keywords

Cite

@article{arxiv.1906.08119,
  title  = {Branching problems in reproducing kernel spaces},
  author = {Bent Orsted and Jorge A. Vargas},
  journal= {arXiv preprint arXiv:1906.08119},
  year   = {2020}
}
R2 v1 2026-06-23T09:58:03.883Z