Results 1 to 10 of about 1,065 (101)
Big Finitistic Dimensions for Categories of Quiver Representations [PDF]
Assume that A is a Grothendieck category and R is the category of all A-representations of a given quiver Q. If Q is left rooted and A has a projective generator, we prove that the big finitistic flat (resp. projective) dimension FFD(A) (resp. FPD(A)) of
Roghayeh Bagherian, Esmaeil Hosseini
doaj +1 more source
Auslander‐reiten conjecture for gorenstein rings of krull dimension at least 2 [PDF]
Auslander‐Reiten Conjecture is one of the most important and long‐standing conjectures in representation theory of finite dimensional algebras. It is known to be in close relationship with a string of homological conjectures on top of which lies the well‐
Hossein Eshraghi
doaj +1 more source
Finitistic dimension conjectures via Gorenstein projective dimension [PDF]
It is a well-known result of Auslander and Reiten that contravariant finiteness of the class $\mathcal{P}^{\mathrm{fin}}_\infty$ (of finitely generated modules of finite projective dimension) over an Artin algebra is a sufficient condition for validity of finitistic dimension conjectures.
Pooyan Moradifar, Jan Šaroch
openaire +3 more sources
On the symmetry of the finitistic dimension
For any ring we propose the construction of a cover which increases the finitistic dimension on one side and decreases the finitistic dimension to zero on the opposite side. This complements recent work of Cummings.
Krause, Henning
doaj +1 more source
Gorenstein Flat Modules of Hopf-Galois Extensions
Let A/B be a right H-Galois extension over a semisimple Hopf algebra H. The purpose of this paper is to give the relationship of Gorenstein flat dimensions between the algebra A and its subalgebra B, and obtain that the global Gorenstein flat dimension ...
Qiaoling Guo +3 more
doaj +1 more source
Finitistic dimension through infinite projective dimension [PDF]
10 ...
Huard, Francois +2 more
openaire +2 more sources
On algebraic characterizations for finiteness of the dimension of EG [PDF]
Certain algebraic invariants of the integral group ring ZG of a group G were introduced and investigated in relation to the problem of extending the Farrell-Tate cohomology, which is defined for the class of groups of finite virtual cohomological ...
Olympia Talelli
doaj +1 more source
Finitistic dimensions and good filtration dimensions of stratified algegras [PDF]
Δ–finitistic dimensions of standardly stratified algebras are defined similarly to properly stratified algebras. It is proved that the finitistic dimension for any standardly stratified algebra is bounded by the sum of the Δ–finitistic dimension and the ∇ good filtration dimension.
Wang, Shugui, Zhu, Bin
openaire +1 more source
Finitistic dimension and restricted injective dimension [PDF]
Let \(R\) be a ring and \(T\) a left \(R\)-module with \(A := \text{End}_{R}(T)\). Then \(T\) can be viewed as a right \(A\)-module. The restricted injective dimension, \(\text{rid}\,(T_{A})\), of \(T_{A}\) is defined as the supremum of the natural numbers \(m\) such that \(\text{Ext}^{m}_{A}(Q, T_{A}) \neq 0\) for some finitely generated projective ...
openaire +2 more sources
On bounds of homological dimensions in Nakayama algebras [PDF]
Let $A$ be a Nakayama algebra with $n$ simple modules and a simple module $S$ of even projective dimension $m$. Choose $m$ minimal such that a simple $A$-module with projective dimension $2m$ exists, then we show that the global dimension of $A$ is ...
Madsen, Dag Oskar, Marczinzik, Rene
core +2 more sources

