English

Drinfeld associators and Kashiwara-Vergne associators in higher genera

Quantum Algebra 2026-04-16 v3 Algebraic Topology

Abstract

For g0g\geq 0, a genus gg Kashiwara-Vergne associator, introduced by Alekseev-Kawazumi-Kuno-Naef as a solution to the generalised KV equations in relation to the formality problem of the Goldman-Turaev Lie bialgebra on an oriented surface with a framing, is directly constructed from a genus gg analogue of a Drinfeld associator formulated by Gonzalez, which we call a Gonzalez-Drinfeld associator. The proof is based on Massuyeau's work in genus 00. The framing is determined from the choice of a Gonzalez-Drinfeld associator, and in the case of genus 11, we show that only particular framings are realised by our construction.

Keywords

Cite

@article{arxiv.2511.00473,
  title  = {Drinfeld associators and Kashiwara-Vergne associators in higher genera},
  author = {Toyo Taniguchi},
  journal= {arXiv preprint arXiv:2511.00473},
  year   = {2026}
}

Comments

42 pages. Added material on framings in Section 6, and minor corrections