Keywords: maximal depth; cycle graph; line graph; whisker graph; transversal polymatroidal ideal; power of edge ideal
Summary: Let $(R,\mathfrak m)$ be a Noetherian local ring and $M$ a finitely generated $R$-module. We say $M$ has maximal depth if there is an associated prime $\mathfrak p$ of $M$ such that depth $M=\dim R/\mathfrak p$. In this paper we study squarefree monomial ideals which have maximal depth. Edge ideals of cycle graphs, transversal polymatroidal ideals and high powers of connected bipartite graphs with this property are classified.
[9] Lam, H. M., Trung, N. V.: Associated primes of powers of edge ideals and ear decompositions of graphs. Trans. Am. Math. Soc. 372 (2019), 3211-3236. DOI 10.1090/tran/7662 | MR 3988608 | Zbl 1420.13023