Showing math.ACShow all
2 papers · 1 filter
math.AC2023
The Cohen-Macaulay type of edge-weighted r-path ideals
Shuai Wei
We describe combinatorially the Cohen-Macaulay type of edge-weighted r-path suspensions of edge-weighted graphs for an arbitrary positive integer r. The computation of the Cohen-Ma…
math.AC2023
Cohen-Macaulay weighted chordal graphs
Shuai Wei
In this paper I give a combinatorial characterization of all the Cohen-Macaulay weighted chordal graphs. In particular, it is shown that a weighted chordal graph is Cohen- Macaulay…