2 papers
math.CO2026
On a conjecture of Las Vergnas
Steven D. Noble, Gordon F. Royle
In 1988, Las Vergnas conjectured that if is a binary matroid with bicycle dimension , then for , the th derivative of the diagonal Tutte polynomial $T(M;…
math.CO2025
An activities expansion of the transition polynomial of a multimatroid
Criel Merino, Iain Moffatt, Steven Noble
The weighted transition polynomial of a multimatroid is a generalization of the Tutte polynomial. By defining the activity of a skew class with respect to a basis in a multimatroid…