On the maximum twist width of delta-matroids

Xian'an Jin, Zhuo Li, Qi Yan +1

For a ribbon graph $G$, let ${\hat{I}}^3(G)$ denote its Euler genus. Recently, Chen, Gross and Tucker [J. Algebraic Combin. 63 (2026) 13] derived a formula for the maximum partial-dual Eule…