Results 1 to 10 of about 3,178 (180)

Equivariant endomorphisms of convex functions

open access: yesJournal of Functional Analysis, 2023
Characterizations of all continuous, additive and GL(n)-equivariant endomorphisms of the space of convex functions on a Euclidean space Rn, of the subspace of convex functions that are finite in a neighborhood of the origin, and of finite convex ...
Georg C Hofstätter, Jonas Knoerr
exaly   +4 more sources

Yang-Baxter endomorphisms [PDF]

open access: yes, 2020
Every unitary solution of the Yang-Baxter equation (R-matrix) in dimension $d$ can be viewed as a unitary element of the Cuntz algebra $\CO_d$ and as such defines an endomorphism of $\CO_d$.
Lechner, Gandalf, Conti, Roberto
core   +3 more sources

Tri-Endomorphisms on BCH-Algebras

open access: yes, 2023
In this paper, we use the concept of endomorphisms and bi-endomorphisms as a model to create tri-endomorphisms on of BCH-algebras. We introduce the concepts of left tri-endomorphisms, central tri-endomorphisms, right tri-endomorphisms, and complete tri ...
Cholatis Suanoom   +3 more
core   +1 more source

Endomorphisms of the Toeplitz algebra

open access: yes, 2023
This article describes all injective endomorphisms of the classical Toeplitz algebra. Their connection with endomorphisms of the algebra of continuous functions on the unit circle and with coverings over the unit circle was considered.
A. Yu. Kuznetsova, S. A. Grigoryan
core   +1 more source

Endomorphisms of stable planes [PDF]

open access: yes, 1992
Endomorphisms of stable planes are introduced, and it is shown that these are injective, locally constant or collapsed. Examples are studied, and it is shown that there are stable planes admitting "substantially more" endomorphisms than ...
Stroppel, Markus
core   +1 more source

Classification of finite potent endomorphisms [PDF]

open access: yes, 2014
[EN]The aim of this work is to offer a family of invariants that allows us to classify finite potent endomorphisms on arbitrary vector spaces, generalizing the classification of endomorphisms on finite-dimensional vector spaces.
Pablos Romo, Fernando
core   +1 more source

Orbit structure and (reversing) symmetries of toral endomorphisms on rational lattices

open access: yes, 2012
Baake M, Neumärker N. Orbit structure and (reversing) symmetries of toral endomorphisms on rational lattices. Discrete and continuous dynamical systems A.
Neumärker, Natascha, Baake, Michael
core   +1 more source

A hitchhiker's guide to endomorphisms and automorphisms of Cuntz algebras [PDF]

open access: yes, 2021
We present a broad selection of results on endomorphisms and automorphisms of the Cuntz algebras $mathcal{O}_n$ that have been obtained in the last decades.
Stefano Rossi   +5 more
core  

Generating transformation semigroups using endomorphisms of preorders, graphs, and tolerances

open access: yes, 2010
Let ΩΩ be the semigroup of all mappings of a countably infinite set Ω. If U and V are subsemigroups of ΩΩ, then we write U≈V if there exists a finite subset F of ΩΩ such that the subsemigroup generated by U and F equals that generated by V and F.
Morayne, Michal   +11 more
core   +1 more source

Core-Nilpotent Endomorphisms of Infinite-Dimensional Vector Spaces

open access: yes, 2021
[EN]The aim of this work is to develop a general theory of core-nilpotent endomorphisms of arbitrary vector spaces, such that endomorphisms of finite-dimensional vector spaces and finite potent endomorphisms of infinite-dimensional vector spaces are ...
Pablos Romo, Fernando
core   +1 more source

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