Results 11 to 20 of about 175 (120)

One the P-Adic Local Invariant Cycle Theorem [PDF]

open access: yes, 2012
The aim of this paper is to consider the $p$-adic local invariant cycle theorem in the mixed characteristic case. In the first part of the paper, via case-by-case discussion, we construct the $p$-adic specialization map, and then write out the ...
Wu, Yi-Tao
core   +1 more source

Finiteness properties of local cohomology modules [PDF]

open access: yes, 2022
Local cohomology modules are one of the central objects in commutative algebra. However, the structure of these modules is still full of mystery. Lyubeznik conjectured that the number of associated primes and all the Bass numbers of local cohomology ...
Quingles Daví, Guillem
core   +1 more source

Matlis dual of local cohomology modules [PDF]

open access: yes, 2020
summary:Let $(R,\mathfrak m)$ be a commutative Noetherian local ring, $\mathfrak a$ be an ideal of $R$ and $M$ a finitely generated $R$-module such that $\mathfrak a M\neq M$ and ${\rm cd}(\mathfrak a,M) - {\rm grade}(\mathfrak a,M)\leq 1$, where ${\rm ...
Naal, Batoul, Khashyarmanesh, Kazem
core   +3 more sources

On Finiteness Properties of Local Cohomology Modules [PDF]

open access: yes, 2022
openThis thesis has its foundations in the fields of homological and commutative algebra, in particular in the study of local cohomology. Local cohomology was introduced by Grothendieck in the early 1960s, in part to answer a conjecture of Pierre Samuel ...
SABATINI, ENRICO
core  

Local cohomology in classical rings [PDF]

open access: yes, 1992
The aim of this paper is to stablish the close connection between prime ideals and torsion theories in anon necessarily commutative noetherian ring. We introduce a new definition of support of a module and characterize some kinds of torsion theories in ...
Jara Martinez, P   +3 more
core   +1 more source

Local Cohomology, Multigradings and Polyhedral Combinatorics [PDF]

open access: yes, 2023
The goal of combinatorial commutative algebra is to study the interplay between commutative algebra and various subfields of combinatorics such as enumerative combinatorics and discrete geometry.
Yu, Byeongsu
core  

Poincaré duality in Hochschild (co)homology [PDF]

open access: yes, 2006
These are notes on van den Bergh’s analogue of Poincar´e duality in Hochschild (co)homology [VdB98]. They are based on survey talks that I gave in 2006 in G¨ottingen, Cambridge and Warsaw and consist of an elementary explanation of the proof in terms ...
Kraehmer, U.
core  

The connective K theory of semidihedral groups [PDF]

open access: yes, 2010
The real connective K-homology of finite groups ko¤(BG), plays a big role in the Gromov-Lawson-Rosenberg (GLR) conjecture. In order to compute them, we can calculate complex connective K-cohomology, ku¤(BG), first and then follow by computing complex ...
Rodtes, Kijti
core  

Local cohomology in classical rings

open access: yes, 2021
The aim of this paper is to stablish the close connection between prime ideals and torsion theories in anon necessarily commutative noetherian ring. We introduce a new definition of support of a module and characterize some kinds of torsion theories in ...
Bueso, J. L., Jara, P.
core  

Stable cohomology over local rings

open access: yes, 2007
For a commutative noetherian ring R with residue field k stable cohomology modules ExtˆRn(k,k) have been defined for each n∈Z, but their meaning has remained elusive. It is proved that the k-rank of any ExtˆRn(k,k) characterizes important properties of R,
Avramov, Luchezar L., Veliche, Oana
core   +1 more source

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