Results 91 to 100 of about 666 (191)

CONSTRUCTIONS OF STABLE EQUIVALENCES OF MORITA TYPE FOR FINITE-DIMENSIONAL ALGEBRAS III

open access: yes, 2007
In this paper, we provide a new method to produce stable equivalences of Morita type. Our main results can be stated as follows. Let A and B be two finite-dimensional k-algebras over a field k.
Yuming Liu, Changchang Xi
core   +1 more source

Semigroup presentations

open access: yes, 2012
In this thesis we consider in detail the following two fundamental problems for semigroup presentations: 1. Given a semigroup find a presentation defining it. 2. Given a presentation describe the semigroup defined by it.
Ruškuc, Nik
core  

Endomorphism algebras of modules with distinguished partially ordered submodules over commutative rings

open access: yes, 1991
Let R be a commutative ring and I = (I, ≤) be a partially ordered set. The paper is concerned with R1-modules M = M, M 1 | I), where M is an R-module with distinguished submodules M1 such that M1 ⊆ M1 for all i ≤ j ϵ I. We regard the endomorphism algebra
Göbel, Rüdiger, Böttinger, Claudia
core   +1 more source

On the vector bundles whose endomorphisms yield Azumaya algebras of cyclic type

open access: yesJournal of Algebra, 1988
L and M being two n-torsion line bundles over a non-singular quasi- projective variety X over an algebraically closed field of any characteristic, an associative Azumaya algebra A(L,M) of rank \(n^ 2\) is constructed, the elements of which correspond to projective space bundles of rank n over X. It is isomorphic to \({\mathcal E}nd(V)\) for some vector
openaire   +1 more source

Automorphisms of Zd-subshifts of finite type

open access: yes, 1994
Let (S,s) be a Zd-subshift of finite type. Under a strong irreducibility condition (strong specification), we show that Aut(S) contains any finite group.
Ward, Thomas   +3 more
core   +1 more source

Type II$_1$ factors with arbitrary countable endomorphism group

open access: yes, 2013
In \cite{Ioana:vNsuperrigidity}, Ioana introduced three new invariants of type II$_1$ factors: the one-sided fundamental group, the endomorphism semigroup and the set of right-finite bimodules. In \cite{Ioana:vNsuperrigidity}, he does not provide many computations of these invariants.
openaire   +2 more sources

An exact category approach to Hecke endomorphism algebras

open access: yes, 2023
Let $G$ be a finite group of Lie type. In studying the cross-characteristic representation theory of $G$, the (specialized) Hecke algebra $H=\End_G(\ind_B^G1_B)$ has played a important role.
Scott, Leonard, Parshall, Brian, Du, Jie
core  

A SPECIAL ENDOMORPHISM OF THE STANDARD GAITSGORY CENTRAL OBJECT OF THE AFFINE HECKE CATEGORY [PDF]

open access: yes
Using the combinatorial description of the standard Gaitsgory centralobject of the (extended, graded) affine type A Hecke category due to Elias, we show the existence of and explicitly describe the unique endomorphism that lifts right multiplication by ...
Hathaway, Jay
core  

Classification of Roberts actions of strongly amenable C∗-tensor categories on the injective factor of type III1

open access: yes, 2017
In this paper, we generalize Izumi’s result on uniqueness of realization of finite C[Formula: see text]-tensor categories in the endomorphism category of the injective factor of type III1 for finitely generated strongly amenable C[Formula: see text ...
Toshihiko Masuda
core   +1 more source

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