A strengthening on consecutive odd cycles in graphs of given minimum degree

Abstract

Liu and Ma [J. Combin. Theory Ser. B, 2018] conjectured that every $2$-connected non-bipartite graph with minimum degree at least $k+1$ contains $\lceil k/2\rceil$ cycles with consecutive odd lengths. In particular, they showed that this conjecture holds when $k$ is even. In this paper, we confirm this conjecture for any $k\in \mathbb{N}$. Moreover, we also improve some previous results about cycles of consecutive lengths.

10 pages