Dominant local rings and subcategory classification
R Takahashi - International Mathematics Research Notices, 2023 - academic.oup.com
We introduce a new notion of commutative noetherian local rings, which we call dominant.
We explore fundamental properties of dominant local rings and compare them with other …
We explore fundamental properties of dominant local rings and compare them with other …
Some characterizations of local rings via reducing dimensions
In this paper we study homological dimensions of finitely generated modules over
commutative Noetherian local rings, called reducing homological dimensions. We obtain …
commutative Noetherian local rings, called reducing homological dimensions. We obtain …
Almost Gorenstein rings arising from fiber products
N Endo, S Goto, R Isobe - Canadian Mathematical Bulletin, 2021 - cambridge.org
The purpose of this paper is, as part of the stratification of Cohen–Macaulay rings, to
investigate the question of when the fiber products are almost Gorenstein rings. We show …
investigate the question of when the fiber products are almost Gorenstein rings. We show …
Minimal free resolutions of fiber products
H Geller - Proceedings of the American Mathematical Society, 2022 - ams.org
We consider a local (or standard graded) ring $ R $ with ideals $\mathcal {I}'$, $\mathcal {I}
$, $\mathcal {J}'$, and $\mathcal {J} $ satisfying certain Tor-vanishing constraints. We …
$, $\mathcal {J}'$, and $\mathcal {J} $ satisfying certain Tor-vanishing constraints. We …
Gluing of analytic space germs, invariants and Watanabe's conjecture
TH de Freitas, VHJ Pérez, AJ Miranda - Israel Journal of Mathematics, 2021 - Springer
This paper deals with the subject of singularities of a germ of an analytic space given by the
gluing of germs of complex analytic spaces and some invariants such as degree of a finite …
gluing of germs of complex analytic spaces and some invariants such as degree of a finite …
On Betti numbers of the gluing of germs of formal complex spaces
TH Freitas, VHJ Pérez… - Mathematische …, 2023 - Wiley Online Library
In this paper, we show that the gluing of germs of formal complex spaces is also a formal
complex space. Moreover, we study the Betti numbers of the gluing of formal complex …
complex space. Moreover, we study the Betti numbers of the gluing of formal complex …
Semidualizing modules over numerical semigroup rings
E Celikbas, H Geller, T Kobayashi - arXiv preprint arXiv:2306.14989, 2023 - arxiv.org
A semidualizing module is a generalization of Grothendieck's dualizing module. For a local
Cohen-Macaulay ring $ R $, the ring itself and its canonical module are always realized as …
Cohen-Macaulay ring $ R $, the ring itself and its canonical module are always realized as …
Lower bounds for Betti numbers over fiber product rings
TH Freitas, VH Jorge Pérez - Communications in Algebra, 2023 - Taylor & Francis
In this paper we study the behavior of the Betti numbers of a finitely generated R-module
over the fiber product ring R× TS, with R, S and T being local rings with common residual …
over the fiber product ring R× TS, with R, S and T being local rings with common residual …
Bounds for multiplicities of the graded fiber product ring
TH Freitas, VH Jorge-Pérez - Bulletin of the Brazilian Mathematical Society …, 2022 - Springer
Bounds for Multiplicities of the Graded Fiber Product Ring | Bulletin of the Brazilian Mathematical
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Society, New Series Skip to main content SpringerLink Account Menu Find a journal Publish …