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

2024/06/21 by Fomichev, Daniil, Karev, Maksim · 2 citations
#Combinatorics (math.CO) #FOS: Mathematics #Geometric Topology (math.GT)

paper · doi:10.48550/arxiv.2406.15084

Abstract

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

Cited by

• \mathfraksl(2)-weight system does not extend to a graph 4-invariant
• Proof of a conjecture of Fomichev and Karev

Related

• \mathfraksl(2)-weight system does not extend to a graph 4-invariant
• Weight systems and invariants of graphs and embedded graphs
• Proof of a conjecture of Fomichev and Karev
• Duality for the \mathfraksl₂ weight system
• Growth and generation in SL₂(Z/pZ)