English

Rigidity of Fibonacci representations of mapping class groups

Geometric Topology 2025-07-09 v2 Representation Theory

Abstract

We prove that level 55 Witten-Reshetikhin-Turaev SO(3)\mathrm{SO}(3) quantum representations, also known as the Fibonacci representations, of mapping class groups are locally rigid. More generally, for any prime level \ell, we prove that the level \ell SO(3)\mathrm{SO}(3) quantum representations are locally rigid on all surfaces of genus g3g\geq 3 if and only if they are locally rigid on surfaces of genus 33 with at most 33 boundary components. This reduces local rigidity in prime level \ell to a finite number of cases.

Keywords

Cite

@article{arxiv.2303.15366,
  title  = {Rigidity of Fibonacci representations of mapping class groups},
  author = {Pierre Godfard},
  journal= {arXiv preprint arXiv:2303.15366},
  year   = {2025}
}

Comments

27 pages, 13 figures, corrections to section 4, published version

R2 v1 2026-06-28T09:36:03.786Z