Cohen-Macaulay Types of Cohen-Macaulay C
✍
T. Hibi
📂
Article
📅
1994
🏛
Elsevier Science
🌐
English
⚖ 750 KB
We say that a Cohen-Macaulay poset (partially ordered set) is "superior" if every open interxal \((x, y)\) of \(P^{*}\) with \(\mu_{p}(x, y) \neq 0\) is doubly Cohen-Macaulay. For example, if \(L=P^{\wedge}\) is a modular lattice, then the Cohen-Macaulay poset \(P\) is superior. We present a formula