Baer-Kaplansky classes of vector spaces and modules determined by numerical invariants

G D'Este, DK Tütüncü, R Tribak - Communications in Algebra, 2023 - Taylor & Francis
We show that reasonably large classes C of vector spaces, modules over noncommutative
algebras and abelian groups are Baer-Kaplansky classes with additional properties. Indeed …

A study on perfect and regular rings

P Aydoğdu - acikbilim.yok.gov.tr
One of the starting points of the historical developments of non-commutative rings and their
modules is algebras over a field K. A K-algebra, its ideals and its modules are K-vector …

Contemporary Mathematics Volume 785, 2023

G D'Este - Algebra and Coding Theory, 2023 - books.google.com
The Baer-Kaplansky Theorem [3, Theorem 108.1] says that two torsion abelian groups with
isomorphic endomorphism rings are actually isomorphic. In the sequel, following [4], we say …

The noncommutative Kalton–Peck spaces

FC Sánchez - Journal of Noncommutative Geometry, 2017 - ems.press
For every von Neumann algebra M and 0< p< 1 we construct a nontrivial exact sequence of
M-bimodules and homomorphisms 0! Lp! Zp. M/! Lp! 0, where Lp is the Haagerup Lp space …

[PDF][PDF] Commutative and noncommutative invariant theory

G Almkvist - Banach Center Publications, 1990 - infona.pl
In this survey paper we point out some similarities and some differences between the theory
of invariants of commuting and noncommuting variables. We begin by making some …

[PDF][PDF] Geometry of directing modules over tame algebras

G Bobinski, A Skowronski - Journal of Algebra, 1999 - core.ac.uk
identity and by a module a finite dimensional left A-module. The class of algebras may be
divided into two disjoint subclasses. One class consists of tame algebras for which the …

Sheaves of noncommutative algebras and the Beilinson-Bernstein equivalence of categories

TJ Hodges, SP Smith - Proceedings of the American Mathematical Society, 1985 - ams.org
Let $ X $ be an irreducible algebraic variety defined over a field $ k $, let $\mathcal {R} $ be
a sheaf of (noncommutative) noetherian $ k $-algebras on $ X $ containing the sheaf of …

Isometric isomorphisms of Cartan bimodule algebras

R Mercer - Journal of Functional Analysis, 1991 - Elsevier
This paper is dedicated to proving a single result: that isometric isomorphisms of Cartan
bimodule algebras can be extended to∗-isomorphisms of the generated von Neumann …

[PDF][PDF] Non commutative deformations of modules

OA Laudal - Preprint series: Pure mathematics http://urn. nb. no …, 1995 - duo.uio.no
Non commutative deformations of modules Page 1 Non commutative deformations of modules
by 0. A. Laudal Page 2 Contents Introduction 1 Preliminaries on deformations of modules 1.1 …

Maps between non-commutative spaces

S Smith - Transactions of the American Mathematical Society, 2004 - ams.org
Let $ J $ be a graded ideal in a not necessarily commutative graded $ k $-algebra $ A=
A_0\oplus A_1\oplus\cdots $ in which $\dim _k A_i<\infty $ for all $ i $. We show that the map …