Results 21 to 30 of about 125,672 (183)

Homomorphisms of Approximation Spaces

open access: yesJournal of Applied Mathematics, 2012
The notion of the homomorphism of approximation spaces is introduced. Some properties of homomorphism are investigated, and some characterizations of homomorphism are given.
Zhaohao Wang, Lan Shu, Xiuyong Ding
doaj   +1 more source

Lattice Homomorphisms Induced by Group Homomorphisms [PDF]

open access: yesProceedings of the American Mathematical Society, 1951
Introduction. By a lattice homorphism of a group G onto a group G' we mean a single-valued mapping sb of the lattice L(G) of subgroups of G onto the lattice L(G') of subgroups of G', which preserves all unions and intersections, that is, which is subject to the conditions 1. (U,S,)(k U= (S,(k), 2.
openaire   +1 more source

A note on the homomorphism theorem for hemirings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1978
The fundamental homomorphism theorem for rings is not generally applicable in hemiring theory. In this paper, we show that for the class of N-homomorphism of hemirings the fundamental theorem is valid.
D. M. Olson
doaj   +1 more source

Pure ⁎-homomorphisms

open access: yesJournal of Functional Analysis
We introduce and study a notion of pureness for *-homomorphisms and, more generally, for cpc. order-zero maps. After providing several examples of pureness, such as "$\mathcal{Z}$-stable"-like maps, we focus on the question of when pure maps factor through a pure C*-algebra.
Joan Bosa, Eduard Vilalta
openaire   +5 more sources

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

On Normalistic Vague Soft Groups and Normalistic Vague Soft Group Homomorphism

open access: yesAdvances in Fuzzy Systems, 2015
We further develop the theory of vague soft groups by establishing the concept of normalistic vague soft groups and normalistic vague soft group homomorphism as a continuation to the notion of vague soft groups and vague soft homomorphism. The properties
Ganeshsree Selvachandran   +1 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  

HOMOMORPHISM OF COGNITIVE SUBJECT DOMAIN MODEL BY KNOWLEDGE TRANSFER IN POST-GRADUATE MEDICAL EDUCATION

open access: yesMedična Informatika ta Inženerìâ, 2012
There is presented the notion of homomorphism cognitive domain subject models. The homomorphism criterion of cognitive models in domain knowledge transfer in the system of post-graduate medical education.
V. V. Krasnov
doaj   +1 more source

Extensions of Johnson's and Morita's homomorphisms that map to finitely generated abelian groups

open access: yes, 2009
We extend each higher Johnson homomorphism to a crossed homomorphism from the automorphism group of a finite-rank free group to a finite-rank abelian group. We also extend each Morita homomorphism to a crossed homomorphism from the mapping class group of
Corwin L. J.   +2 more
core   +1 more source

Semitopological Homomorphisms

open access: yesRendiconti del Seminario Matematico della Università di Padova, 2008
Inspired by an analogous result of Arnautov about isomorphisms, we prove that all continuous surjective homomorphisms of topological groups f :G → H can be obtained as restrictions of open continuous surjective homomorphisms
openaire   +4 more sources

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