English

Cusped Borel Anosov representations with positivity

Differential Geometry 2023-07-14 v1 Group Theory

Abstract

We show that if a cusped Borel Anosov representation from a lattice ΓPGL2(R)\Gamma \subset \mathsf{PGL}_2(\mathbb{R}) to PGLd(R)\mathsf{PGL}_d(\mathbb{R}) contains a unipotent element with a single Jordan block in its image, then it is necessarily a (cusped) Hitchin representation. We also show that the amalgamation of a Hitchin representation with a cusped Borel Anosov representation that is not Hitchin is never cusped Borel Anosov.

Cite

@article{arxiv.2307.06591,
  title  = {Cusped Borel Anosov representations with positivity},
  author = {Tengren Zhang and Gye-Seon Lee},
  journal= {arXiv preprint arXiv:2307.06591},
  year   = {2023}
}

Comments

13 pages

R2 v1 2026-06-28T11:29:09.398Z