English

Weakly positive and directed Anosov representations

Geometric Topology 2022-07-25 v3 Differential Geometry

Abstract

Given a finitely generated group Γ\Gamma, a directed graph Λ\Lambda, and a map R:ΛΓR:\Lambda\to\Gamma, we introduce the notion of an (R,Λ)(R,\Lambda)-directed Anosov representation. This is a weakening of the notion of Anosov representations. Our main theorem gives a procedure to construct (R,Λ)(R,\Lambda)-directed Anosov representations using Fock-Goncharov positivity. As an application of our main theorem, we construct large families of primitive stable representations from F2F_2 to PGL(V)\mathrm{PGL}(V), including non-discrete and non-faithful examples.

Keywords

Cite

@article{arxiv.2008.02424,
  title  = {Weakly positive and directed Anosov representations},
  author = {Sungwoon Kim and Ser Peow Tan and Tengren Zhang},
  journal= {arXiv preprint arXiv:2008.02424},
  year   = {2022}
}

Comments

We generalize and reformulate the notions of R-directed Anosov and R-weakly positive representations in the previous manuscript. In addition, we make changes to clarify the previous manuscript

R2 v1 2026-06-23T17:40:20.487Z