Results 21 to 30 of about 7,960 (211)

Johnson homomorphisms

open access: yesEMS Surveys in Mathematical Sciences, 2021
Torelli groups are subgroups of mapping class groups that consist of those diffeomorphism classes that act trivially on the homology of the associated closed surface. The Johnson homomorphism, defined by Dennis Johnson, and its generalization, defined by S. Morita, are tools for understanding Torelli groups.
openaire   +3 more sources

Soft near-semirings

open access: yesAIMS Mathematics, 2020
Soft set theory was introduced by Molodtsov to deal with uncertainty. In this manuscript, we commence with the notion of soft near-semirings based on soft set theory.
Waheed Ahmad Khan   +2 more
doaj   +1 more source

Enumerating homomorphisms

open access: yesJournal of Computer and System Sciences, 2012
The homomorphism problem for relational structures is an abstract way of formulating constraint satisfaction problems (CSP) and various problems in database theory. The decision version of the homomorphism problem received a lot of attention in literature; in particular, the way the graph-theoretical structure of the variables and constraints ...
Bulatov, Andrei A.   +3 more
openaire   +5 more sources

K-algebras on quadripartitioned single valued neutrosophic sets [PDF]

open access: yesJournal of Fuzzy Extension and Applications, 2020
Quadripartitioned single valued neutrosophic (QSVN) set is a powerful structure where we have four components Truth-T, Falsity-F, Unknown-U and Contradiction-C.
Mohanasundari Mohan, Mohana Krishnaswamy
doaj   +1 more source

Topology optimization for two-dimensional structures using boundary cycles in homology theory

open access: yesMechanical Engineering Journal, 2022
Various prominent methods for structural topology optimization have been developed, especially since the late 1980s when the homogenization method was proposed.
Yasuhiko NAKANISHI
doaj   +1 more source

Universal mapping properties of some pseudovaluation domains and related quasilocal domains

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
If (R,M) and (S,N) are quasilocal (commutative integral) domains and f:R→S is a (unital) ring homomorphism, then f is said to be a strong local homomorphism (resp., radical local homomorphism) if f(M)=N (resp., f(M)⊆N and for each x∈N, there exists a
Ahmed Ayache   +2 more
doaj   +1 more source

Factoring Continuous Characters Defined on Subgroups of Products of Topological Groups

open access: yesAxioms, 2021
This study is on the factorization properties of continuous homomorphisms defined on subgroups (or submonoids) of products of (para)topological groups (or monoids).
Mikhail G. Tkachenko
doaj   +1 more source

Homomorphism and sigma polynomials

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
By establishing a connection between the sigma polynomial and the homomorphism polynomial, many of the proofs for computing the sigma polynmial are simplified, the homomorphism polynomial can be identified for several new classes of graphs, and progress ...
Richard Alan Gillman
doaj   +1 more source

On Homomorphism and Cartesian Products of Intuitionistic Fuzzy PMS-subalgebra of a PMS-algebra

open access: yesBulletin of the Section of Logic, 2023
In this paper, we introduce the notion of intuitionistic fuzzy PMS-subalgebras under homomorphism and Cartesian product and investigate several properties.
Beza Lamesgin Derseh   +2 more
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

Home - About - Disclaimer - Privacy