Strong generators in and
A Neeman - Annals of Mathematics, 2021 - projecteuclid.org
We solve two open problems: first we prove a conjecture of Bondal and Van den Bergh,
showing that the category D^perf(X) is strongly generated whenever X is a quasicompact …
showing that the category D^perf(X) is strongly generated whenever X is a quasicompact …
Strong generation & (co) ghost index for module categories
P Lank - arXiv preprint arXiv:2307.13675, 2023 - arxiv.org
This work is concerned with both strong generation and (co) ghost index in the module
category of a commutative noetherian ring. A sufficiency criterion is established for such …
category of a commutative noetherian ring. A sufficiency criterion is established for such …
[图书][B] Maximal Cohen–Macaulay Modules and Tate Cohomology
RO Buchweitz - 2021 - books.google.com
This book is a lightly edited version of the unpublished manuscript Maximal Cohen–
Macaulay modules and Tate cohomology over Gorenstein rings by Ragnar-Olaf Buchweitz …
Macaulay modules and Tate cohomology over Gorenstein rings by Ragnar-Olaf Buchweitz …
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 …
Annihilation of cohomology and strong generation of module categories
SB Iyengar, R Takahashi - International Mathematics Research …, 2016 - academic.oup.com
The cohomology annihilator of a noetherian ring that is finitely generated as a module over
its center is introduced. Results are established linking the existence of nontrivial …
its center is introduced. Results are established linking the existence of nontrivial …
On the subcategories of n-torsionfree modules and related modules
S Dey, R Takahashi - Collectanea Mathematica, 2023 - Springer
Let R be a commutative noetherian ring. Denote by mod\, R mod R the category of finitely
generated R-modules. In this paper, we study n-torsionfree modules in the sense of …
generated R-modules. In this paper, we study n-torsionfree modules in the sense of …
Classification of resolving subcategories and grade consistent functions
H Dao, R Takahashi - International Mathematics Research …, 2015 - ieeexplore.ieee.org
We classify certain resolving subcategories of finitely generated modules over a
commutative noetherian ring R by using integer-valued functions on SpecR. As an …
commutative noetherian ring R by using integer-valued functions on SpecR. As an …
The dimension of a subcategory of modules
H Dao, R Takahashi - Forum of Mathematics, Sigma, 2015 - cambridge.org
Let R be a commutative noetherian local ring. As an analog of the notion of the dimension of
a triangulated category defined by Rouquier, the notion of the dimension of a subcategory of …
a triangulated category defined by Rouquier, the notion of the dimension of a subcategory of …
Generators and dimensions of derived categories of modules
T Aihara, R Takahashi - Communications in Algebra, 2015 - Taylor & Francis
Several years ago, Bondal, Rouquier, and Van den Bergh introduced the notion of the
dimension of a triangulated category, and Rouquier proved that the bounded derived …
dimension of a triangulated category, and Rouquier proved that the bounded derived …
The extension dimension of abelian categories
J Zheng, X Ma, Z Huang - Algebras and Representation Theory, 2020 - Springer
Let AA be an abelian category having enough projective objects and enough injective
objects. We prove that if AA admits an additive generating object, then the extension …
objects. We prove that if AA admits an additive generating object, then the extension …