Results 31 to 40 of about 13,469,908 (217)

CONTINUITY OF UNIVERSALLY MEASURABLE HOMOMORPHISMS

open access: yesForum of Mathematics, Pi, 2019
Answering a longstanding problem originating in Christensen’s seminal work on Haar null sets [Math. Scand. 28 (1971), 124–128; Israel J. Math. 13 (1972), 255–260; Topology and Borel Structure.
CHRISTIAN ROSENDAL
doaj   +1 more source

STABILITY, COHOMOLOGY VANISHING, AND NONAPPROXIMABLE GROUPS

open access: yesForum of Mathematics, Sigma, 2020
Several well-known open questions (such as: are all groups sofic/hyperlinear?) have a common form: can all groups be approximated by asymptotic homomorphisms into the symmetric groups $\text{Sym}(n)$ (in the sofic case) or the finite-dimensional unitary ...
MARCUS DE CHIFFRE   +3 more
doaj   +1 more source

Homomorphic Preimages of Geometric Paths

open access: yesDiscussiones Mathematicae Graph Theory, 2018
A graph G is a homomorphic preimage of another graph H, or equivalently G is H-colorable, if there exists a graph homomorphism f : G → H. A geometric graph Ḡ is a simple graph G together with a straight line drawing of G in the plane with the vertices in
Cockburn Sally
doaj   +1 more source

Locally Split Homomorphisms Relative To A Sub module [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2013
In this article,for a positive integer n ,the concept of n-locally split homomorphism relative to a sub module has been introduced and studied,which will turn out to be most useful in the studying and providing characterizations of local projectivity ...
Mehdi S. Abbas
doaj   +1 more source

A note on n-Jordan homomorphisms

open access: yesМатематичні Студії
{Let $ A, B $ be two rings and $ n\geqslant 2 $ be an integer. An additive map $ h\colon A\rightarrow B $ is called an $n$-Jordan homomorphism if $ h(x^{n})=h(x)^{n} $ for all $ x\in A;$ $h$ is called an n-homomorphism or an anti-$n$-homomorphism if $ h(\
M. El Azhari
doaj   +1 more source

The Structure of Moduloid on a Nexus

open access: yesMathematics, 2019
In this paper, the notion of moduloid on a nexus is introduced. Moreover, the concept of submoduloid is defined and some different submoduloids are introdused. Also, several interesting facts about submoduloids are proved. Finally, a homomorphism between
Masoud Bolourian   +2 more
doaj   +1 more source

Characterization of Pseudo n-Jordan Homomorphisms Between Unital Algebras

open access: yesپژوهش‌های ریاضی, 2020
Let A and B be Banach algebras and B be a right A-module. In this paper, under special hypotheses we prove that every pseudo (n+1)-Jordan homomorphism f:A----> B is a pseudo n-Jordan homomorphism and every pseudo n-Jordan homomorphism is an n-Jordan ...
Abbas Zivari-Kazempour, Abasalt Bodaghi
doaj  

On Classification of Semigroup N by Green’s Theorem

open access: yesJournal of Mathematics, 2022
In previous papers, it has been recently defined a new class of semigroups based on both Rees matrix and completely 0-simple semigroups. For this new structure, it has been introduced with certain basic properties and finiteness conditions. The main goal
Suha Wazzan, Nurten Urlu Ozalan
doaj   +1 more source

Globular multicategories with homomorphism types [PDF]

open access: yes, 2023
We introduce various notions of globular multicategory with homomorphism types. We develop a higher dimensional modules construction that constructs globular multicategories with strict homomorphism types.
Dean, Christopher James
core   +1 more source

Lefschetz (1,1)-theorem in tropical geometry [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2018
For a tropical manifold of dimension n we show that the tropical homology classes of degree (n-1, n-1) which arise as fundamental classes of tropical cycles are precisely those in the kernel of the eigenwave map.
Philipp Jell, Johannes Rau, Kristin Shaw
doaj   +1 more source

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