Basis number of bounded genus graphs
Combinatorics
2024-10-15 v1 Discrete Mathematics
Abstract
The basis number of a graph is the smallest integer such that admits a basis for its cycle space, where each edge of belongs to at most members of . In this note, we show that every non-planar graph that can be embedded on a surface with Euler characteristic has a basis number of exactly , proving a conjecture of Schmeichel from 1981. Additionally, we show that any graph embedded on a surface (whether orientable or non-orientable) of genus has a basis number of .
Keywords
Cite
@article{arxiv.2410.10566,
title = {Basis number of bounded genus graphs},
author = {Florian Lehner and Babak Miraftab},
journal= {arXiv preprint arXiv:2410.10566},
year = {2024}
}
Comments
Comments are welcome