Results 91 to 100 of about 769,852 (175)
Hilbert functions of Cohen -Macaulay modules
Let (A, [special characters omitted]) be a d-dimensional Noetherian local ring, M a finite Cohen-Macaulay A-module of dimension r and let I be an ideal of definition for M.
Puthenpurakal, Tony Joseph
core +1 more source
Cohen-Macaulay modules over two-dimensional graph orders [PDF]
For a split graph order ℒ over a complete local regular domain $\cal O$ of dimension 2 the indecomposable Cohen-Macaulay modules decompose - up to irreducible projectives - into a union of the indecomposable Cohen-Macaulay modules over graph orders of ...
Roggenkamp, Klaus
core
Higher Cohen-Macaulay property of squarefree modules and simplicial posets
Recently, G. Fløystad studied higher Cohen-Macaulay property of certain finite regular cell complexes. In this paper, we partially extend his results to squarefree modules, toric face rings, and simplicial posets.
Kohji Yanagawa
core +1 more source
Some Characterizations of Relative Sequentially Cohen-Macaulay and Relative Cohen-Macaulay Modules
Let $M$ be an $R$-module over a Noetherian ring $R$ and $\mathfrak{a}$ be an ideal of $R$ with $c={\rm cd}(\mathfrak{a},M)$. First, we prove that $M$ is finite $\mathfrak{a}$-relative Cohen-Macaulay if and only if ${\rm H}_i(\Lambda_{\mathfrak{a}}({\rm H}
Zargar, Majid Rahro
core
On Cohen-Macaulay modules over surface singularities
26 pages, 1 ...
Drozd, Y., Greuel, G., Kashuba, I.
openaire +4 more sources
Categorical Torelli theorems: results and open problems. [PDF]
Pertusi L, Stellari P.
europepmc +1 more source
Cohen-Macaulay multigraded modules
Let S be a standard N^r-graded algebra over a local ring A, and let M be a finitely generated Z^r-graded S-module. We characterize the Cohen-Macaulayness of M in terms of the vanishing of certain sheaf cohomology modules. As a consequence, we apply our result to study the Cohen-Macaulayness of multi-Rees modules (also called Rees modification).
Chan, C.-Y. Jean +2 more
openaire +3 more sources
Lim Cohen-Macaulay sequences of modules
We introduce the notion of a lim Cohen-Macaulay sequence of modules. We prove the existence of such sequences in positive characteristic, and show that their existence in mixed characteristic implies the long open conjecture about positivity of Serre ...
Ma, Linquan +2 more
core
Cohen-Macaulay Loci of modules
The Cohen-Macaulay locus of any finite module over a noetherian local ring $A$ is studied and it is shown that it is a Zariski-open subset of $\Spec A$ in certain cases. In this connection, the rings whose formal fibres over certain prime ideals are Cohen-Macaulay are studied.
Dibaei, Mohammad T., Jafari, Raheleh
openaire +2 more sources

