Igor Spiridonov

collaborators

2 papers

math.GT2026

On the second homology of the genus 3 hyperelliptic Torelli group

Igor Spiridonov

Let $s$ be a fixed hyperelliptic involution of the closed, oriented genus $g$ surface $Σ_{g}$ . The hyperelliptic Torelli group $S I_{g}$ is the subgroup of the mapping class g…

math.CO2025

Tight complexity bounds for diagram commutativity verification

Artem Malko, Igor Spiridonov

A diagram $D = (G, l)$ over a monoid $M$ is an oriented graph $G = (V, E)$ endowed with a labeling $l : E \to M$ . A diagram is commutative if and only if for any two…