Results 11 to 20 of about 19,938 (92)

Grothendieck Rings of Towers of Twisted Generalized Weyl Algebras [PDF]

open access: yesAlgebras and Representation Theory, 2021
Twisted generalized Weyl algebras (TGWAs) A ( R , σ , t ) are defined over a base ring R by parameters σ and t , where σ is an n -tuple of automorphisms, and t is an n -tuple of elements in the center of R .
J. Hartwig, D. Rosso
semanticscholar   +2 more sources

Ordered set partitions, Garsia-Procesi modules, and rank varieties [PDF]

open access: yes, 2020
We introduce a family of ideals $I_{n,\lambda,s}$ in $\mathbb{Q}[x_1,\dots,x_n]$ for $\lambda$ a partition of $k\leq n$ and an integer $s \geq \ell(\lambda)$.
Sean T. Griffin
semanticscholar   +1 more source

Classifying subcategories of modules over Noetherian algebras [PDF]

open access: yesAdvances in Mathematics, 2021
The aim of this paper is to unify classification theories of torsion classes of finite dimensional algebras and commutative Noetherian rings. For a commutative Noetherian ring $R$ and a module-finite $R$-algebra $\Lambda$, we study the set $\mathsf{tors}
O. Iyama, Y. Kimura
semanticscholar   +1 more source

Applications of ternary rings to $C^*$-algebras [PDF]

open access: yes, 2016
We show that there is a functor from the category of positive admissible ternary rings to the category of $*$-algebras, which induces an isomorphism of partially ordered sets between the families of $C^*$-norms on the ternary ring and its corresponding $*
F. Abadie, Damián Ferraro
semanticscholar   +1 more source

Simple flat Leavitt path algebras are von Neumann regular [PDF]

open access: yesCommunications in Algebra, 2018
For a unital ring, it is an open question whether flatness of simple modules implies all modules are flat and thus the ring is von Neumann regular. The question was raised by Ramamurthi over 40 years ago who called such rings SF-rings (i.e.
A. A. Ambily, R. Hazrat, Huanhuan Li
semanticscholar   +1 more source

Skew category algebras and modules on ringed finite sites [PDF]

open access: yesJournal of Algebra, 2022
Let $\mathcal{C}$ be a small category. We investigate ringed sites $(\mathbf{C},\mathfrak{R})$ on $\mathcal{C}$ and the resulting module categories $\mathfrak{M}{\rm od}\text{-}\mathfrak{R}$.
Matt Wu, Fei Xu
semanticscholar   +1 more source

Representation of artinian partially ordered sets over semiartinian von Neuman regular algebras [PDF]

open access: yes, 2009
If R is a semiartinian von Neumann regular ring, then the set Prim R of primitive ideals of R, ordered by inclusion, is an artinian poset in which all maximal chains have a greatest element.
G. Baccella
semanticscholar   +1 more source

Silting Modules over Triangular Matrix Rings [PDF]

open access: yesTaiwanese journal of mathematics, 2020
Let $\Lambda,\Gamma$ be rings and $R=\left(\begin{array}{cc}\Lambda & 0 \\ M & \Gamma\end{array}\right)$ the triangular matrix ring with $M$ a $(\Gamma,\Lambda)$-bimodule. Let $X$ be a right $\Lambda$-module and $Y$ a right $\Gamma$-module. We prove that
Hanpeng Gao, Zhaoyong Huang
semanticscholar   +1 more source

Universal deformation rings of finitely generated Gorenstein-projective modules over finite dimensional algebras [PDF]

open access: yesJournal of Pure and Applied Algebra, 2017
Let $\mathbf{k}$ be a field of arbitrary characteristic, let $\Lambda$ be a finite dimensional $\mathbf{k}$-algebra, and let $V$ be a finitely generated $\Lambda$-module. F. M.
Viktor Bekkert   +2 more
semanticscholar   +1 more source

Advances in Rings and Modules

open access: yesContemporary Mathematics, 2018
Semiprime ideals of an arbitrary Leavitt path algebra L are described in terms of their generators. This description is then used to show that the semiprime ideals form a complete sublattice of the lattice of ideals of L, and they enjoy a certain gap ...
S. López-Permouth   +3 more
semanticscholar   +1 more source

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