Results 31 to 40 of about 18,787 (208)

The category of generalized crossed modules [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2019
In the definition of a crossed module $(T,G,rho)$, the actions of the group $T$ and $G$ on themselves are given by conjugation. In this paper, we consider these actions to be arbitrary and thus generalize the concept of ordinary crossed module. Therefore,
Mahdieh Yavari, Alireza Salemkar
doaj  

Semi-Small Compressible Modules and Semi-Small Retractable Modules

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2023
Let  be a commutative ring with 1 and  be left unitary  . In this paper we introduced and studied concept of semi-small compressible module (a     is said to be semi-small compressible module if  can be embedded in every nonzero semi-small submodule of .
Mohammed Baqer Hashim Al Hakeem   +2 more
doaj   +1 more source

Association of selected polymorphic sites in the IGF1R gene with body weight and conformation of Hereford cattle [PDF]

open access: yesRoczniki Naukowe Polskiego Towarzystwa Zootechnicznego, 2020
The aim of this study was to determine the relationship between selected polymorphic sites located in various fragments of the IGF1R gene and the growth and development of Hereford cattle.
Małgorzata Anna Szewczuk, Hanna Kulig
doaj   +1 more source

On Strong Monomorphisms and Strong Epimorphisms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2010
J. Dydak and F. R. Ruiz del Portal defined strong monomorphism and strong epimorphism in procategories. They obtained a useful characterization of them and some results.
M. A. Al Shumrani
doaj   +1 more source

Order extension of order monomorphisms on a preordered topological space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
This paper proves Nachbin-type extension theorems for infinitely many functions on a topological space equipped with a preorder.
Ghanshyam Mehta
doaj   +1 more source

Topological radical of Banach module

open access: yes, 2016
We introduce the concept of topological radical of a Banach module. This closed submodule have two description: the as the intersection of ranges of maximal contractive monomorphism (from outside) and as the union of ranges of small morphisms (from ...
Aristov, Oleg
core   +1 more source

The Ring Homomorphisms of Matrix Rings over Skew Generalized Power Series Rings

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2021
Let  M_n (R_1 [[S_1,≤_1,ω_1]]) and M_n (R_2 [[S_2,≤_2,ω_2]]) be a matrix rings over skew generalized power series rings, where R_1,R_2 are commutative rings with an identity element, (S_1,≤_1 ),(S_2,≤_2 ) are strictly ordered monoids, ω_1:S_1→End(R_1 ),〖
Ahmad Faisol, Fitriani Fitriani
doaj   +1 more source

SpecSatisfiabilityTool: A tool for testing the satisfiability of specifications on XML documents

open access: yes, 2015
We present a prototype that implements a set of logical rules to prove the satisfiability for a class of specifications on XML documents. Specifications are given by means of constrains built on Boolean XPath patterns.
Albors, Javier, Navarro, Marisa
core   +2 more sources

The monomorphism problem in free groups [PDF]

open access: yes, 2018
Let F be a free group of finite rank. We say that the monomorphism problem in F is decidable if there is an algorithm such that, for any two elements u and v in F, it determines whether there exists a monomorphism of F that sends u to v. In this paper we
Ciobanu, Laura, Houcine, Abderezak
core  

L-Fuzzy Sub-Effect Algebras

open access: yesMathematics, 2021
In this paper, the notions of L-fuzzy subalgebra degree and L-subalgebras on an effect algebra are introduced and some characterizations are given. We use four kinds of cut sets of L-subsets to characterize the L-fuzzy subalgebra degree.
Yan-Yan Dong, Fu-Gui Shi
doaj   +1 more source

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