English

The sl(2)-weight system at c = 3/8 for graphs

Combinatorics 2025-05-20 v2 Geometric Topology

Abstract

We construct a 4-invariant that extends a specialization of the sl(2)\mathfrak{sl}(2)-weight system at c=38c = \frac 38, and satisfies a simple deletion-contraction relation.

Cite

@article{arxiv.2406.15084,
  title  = {The sl(2)-weight system at c = 3/8 for graphs},
  author = {Daniil Fomichev and Maksim Karev},
  journal= {arXiv preprint arXiv:2406.15084},
  year   = {2025}
}

Comments

12 pages. Accepted version

R2 v1 2026-06-28T17:14:39.582Z