4 papers
Algebraic study on rooted products of graphs and multi-clique corona graphs
Yuji Muta, Naoki Terai
In this paper, we study rooted products of graphs from the perspective of combinatorial commutative algebra. For edge ideals, we introduce the 2-Cohen-Macaulayness with respect to…
On minimal free resolutions of the cover ideals of clique-whiskered graphs
Yuji Muta, Naoki Terai
We explicitly construct a minimal free resolution of the cover ideals of clique-whiskered graphs. In particular, Cohen--Macaulay chordal graphs, clique corona graphs, and Cohen--Ma…
The Serre depth of Stanley-Reisner rings and the depth of their symbolic powers
Yuji Muta, Naoki Terai
We investigate an invariant, called the Serre depth, from the perspective of combinatorial commutative algebra. In this paper, we establish several properties of an analogue of the…
The v-numbers of Stanley-Reisner ideals from the viewpoint of Alexander dual complexes
Tatsuya Kataoka, Yuji Muta, Naoki Terai
We express the v-number of the Stanley-Reisner ideal in terms of its Alexander dual complex and prove that the v-number of a cover ideal is just two less than the initial degree of…