Results 71 to 80 of about 1,915 (162)

A pointfree version of remainder preservation [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2013
Recall that a continuous function $fcolon Xto Y$ between Tychonoff spaces is proper if and only if the Stone extension $f^{beta}colon beta Xtobeta Y$ takes remainder to remainder, in the sense that $f^{beta}[beta X-X]subseteq beta Y-Y$.
Themba Dube, Inderasan Naidoo
doaj  

Ring homomorphisms on H(G)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
It is shown that a ring homomorphism on H(G), the algebra of analytic functions on a regular region G in the complex plane, is either linear or conjugate linear provided that the ring homomorphism takes the identity function into a nonconstant function.
N. R. Nandakumar
doaj   +1 more source

Homomorphic and restricted homomorphic products of soft graphs

open access: yesJournal of the Nigerian Society of Physical Sciences
Molodtsov pioneered the notion of soft set theory, presenting it as a mathematical tool for dealing with uncertainty. Numerous researchers have subsequently developed models leveraging this theory to tackle challenges in decision-making and medical diagnosis.
Jinta Jose   +4 more
openaire   +2 more sources

THE PROBLEM OF NEW PROPERTIES OF NUMBERS

open access: yesНадежность и качество сложных систем
Background. The proposed work is devoted to research to clarify the axiomatization of arithmetic in connection with the presence of special assumptions in it.
L.G. Sushkov
doaj   +1 more source

Reflexive Homomorphic Relations [PDF]

open access: yesCanadian Mathematical Bulletin, 1960
It is well known that a symmetric and transitive relation on a set is reflexive wherever it is defined. In this note we show that a converse is true for homomorphic relations in certain classes of algebras.Consider a class of similar algebras which contains the sub-algebras and quotient algebras of each of its members.
openaire   +2 more sources

Undecidability of polynomial inequalities in weighted graph homomorphism densities

open access: yesForum of Mathematics, Sigma
Many problems and conjectures in extremal combinatorics concern polynomial inequalities between homomorphism densities of graphs where we allow edges to have real weights.
Grigoriy Blekherman   +2 more
doaj   +1 more source

HOMOMORPHISM IN ROUGH LATTICE

open access: yesJournal of New Theory, 2015
− In this paper, we introduce the concept of set-valued homomorphism of a lattice which isthe generalization of ordinary lattice homomorphism. We construct generalized rough lower and upperapproximations operators, by means of a set-valued mapping, which
Dipankar Rana, Sankar Kumar Roy
doaj  

Free Algebras of Full Terms Generated by Order-Preserving Transformations

open access: yesMathematics
Full terms, which serve as tools for classifying algebras into subclasses, can be studied using an algebraic approach. For a natural number n, this paper introduces the algebra of order-preserving full terms under the (n+1)-superposition operation ...
Khwancheewa Wattanatripop   +1 more
doaj   +1 more source

Jordan homomorphisms [PDF]

open access: yesTransactions of the American Mathematical Society, 1956
openaire   +2 more sources

homomorphic

open access: yes, 2008
Citation: 'homomorphic' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.H02853 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

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