English

Invariant CR Mappings between Hyperquadrics

Complex Variables 2018-11-14 v1

Abstract

We analyze a canonical construction of group-invariant CR Mappings between hyperquadrics due to D'Angelo. Given source hyperquadric of Q(1,1)Q(1,1), we determine the signature of the target hyperquadric for all finite subgroups of SU(1,1)SU(1,1). We also extend combinatorial results proven by Loehr, Warrington, and Wilf on determinants of sparse circulant determinants. We apply these results to study CR mappings invariant under finite subgroups of U(1,1)U(1,1).

Keywords

Cite

@article{arxiv.1811.04978,
  title  = {Invariant CR Mappings between Hyperquadrics},
  author = {Dusty Grundmeier and Kemen Linsuain and Brendan Whitaker},
  journal= {arXiv preprint arXiv:1811.04978},
  year   = {2018}
}

Comments

17 pages

R2 v1 2026-06-23T05:13:12.806Z