Some criteria for regular and Gorenstein local rings via syzygy modules

D Ghosh - Journal of Algebra and Its Applications, 2019 - World Scientific
… Another motivation for Theorem 3.3 is to obtain a characterization of Gorenstein local rings
via … several criteria for Gorenstein local rings via syzygy modules of the residue field over CM …

Resolutions in Local Algebra and Singularity Theory

SB Iyengar - 2023 - publications.mfo.de
… theorem, we can find a complete regular local ring (A, mA,k) and a … Moreover, for Gorenstein
rings, the syzygy functor Ω … We denote by vK the value group and by Kv the residue field of (K…

On the reducing projective dimension of the residue field

O Celikbas, S Dey, T Kobayashi, H Matsui - arXiv preprint arXiv …, 2022 - arxiv.org
… the residue field of each commutative Noetherian local ring has … similar important
characterizations of local rings via other … To establish the sequence in (2.10.1), we consider a …

Vanishing of (co) homology over deformations of Cohen-Macaulay local rings of minimal multiplicity

D Ghosh, TJ Puthenpurakal - Glasgow Mathematical Journal, 2019 - cambridge.org
… homomorphic images of syzygy modules of the residue field. … If the residue field k is finite,
then we use the standard trick to … obtain a characterization of Gorenstein local rings provided …

Complexity and rigidity of Ulrich modules, and some applications

S Dey, D Ghosh - arXiv preprint arXiv:2201.00984, 2022 - arxiv.org
… We prove that Ulrich modules over CM local rings have … We may assume that the residue
field k is infinite. In the base case, … , Characterizations of regular local rings via syzygy modules

On the reducing projective dimension over local rings

O Celikbas, S Dey, T Kobayashi… - Glasgow Mathematical …, 2024 - cambridge.org
… the residue field of each commutative Noetherian local ring … similar important characterizations
of local rings via other … it is a syzygy of a maximal Cohen–Macaulay module. Consequently…

Syzygies of Cohen–Macaulay Modules over One Dimensional Cohen–Macaulay Local Rings

T Kobayashi - Algebras and Representation Theory, 2022 - Springer
… give several characterizations of almost Gorenstein rings in … two with algebraically closed
residue field. Then A has a … of M and by M the (first) syzygy of M in the minimal free resolution. …

Some characterizations of local rings via reducing dimensions

O Celikbas, S Dey, T Kobayashi, H Matsui - arXiv preprint arXiv …, 2022 - arxiv.org
… -th syzygy module in … characterizing Gorenstein local rings via reducing G-dimension. In
the following, for given subcategories X ,Y of modR, denote by X ∗Y the collection of all modules

Problems on infinite free resolutions

LL Avramov - Free Resolutions in Commutative Algebra and …, 2023 - taylorfrancis.com
… a noetherlan local ring with maximal Ideal m and residue field £ … R + 1)'st syzygy of a module
with bounded Betti numbers is … , and admit a variety of possible characterizations, cf. [43, 19]…

Numerical invariants of Cohen-Macaulay local and graded rings

RF Bartels - 2024 - search.proquest.com
residue field k and Cohen-Macaulay associated graded ring grm(R… an MCM module over a
Gorenstein complete local ring R is … R-module satisfies the SCr-condition when its first syzygy