Results 31 to 40 of about 6,567 (235)
Well quasi-order in combinatorics : embeddings and homomorphisms
, 2015 The notion of well quasi-order (wqo) from the theory of ordered sets often arises naturally in contexts where one deals with infinite collections of structures which can somehow be compared, and it then represents a useful discriminator between ‘tame ...
Ruskuc, Nik +3 more
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Approximation of the multiplicatives on random multi-normed space
Journal of Inequalities and Applications, 2017 In this paper, we consider random multi-normed spaces introduced by Dales and Polyakov (Multi-Normed Spaces, 2012). Next, by the fixed point method, we approximate the multiplicatives on these spaces.
Ravi P Agarwal +2 more
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Exactness of Proximal Group Homomorphisms
Cumhuriyet Science Journal, 2022 This research introduces groups in proximity spaces which endowed with a proximity relation. Two penultimate choices for such relations are the Efremovic (EF) proximity relation and its extension, namely, the descriptive EF-proximity relation. There is a
Mehmet Ali Öztürk
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The Homomorphism Theorems of M-Hazy Rings and Their Induced Fuzzifying Convexities
Mathematics, 2020 In traditional ring theory, homomorphisms play a vital role in studying the relation between two algebraic structures. Homomorphism is essential for group theory and ring theory, just as continuous functions are important for topology and rigid movements
Faisal Mehmood +3 more
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Homomorphisms between Fuzzy Approximation Spaces Based on Residuated Lattice
Journal of Applied Mathematics, 2014 Two kinds of homomorphisms of fuzzy approximation spaces based on complete residuated lattice are proposed. The homomorphisms are structure-preserving maps in some sense.
Yuan Zhao
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Journal of Functional AnalysisWe 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.
Bosa, Joan, Vilalta Vila, Eduard
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On residualizing homomorphisms preserving quasiconvexity
, 2005 H is called a G-subgroup of a hyperbolic group G if for any finite subset M G there exists a homomorphism from G onto a non-elementary hyperbolic group G_1 that is surjective on H and injective on M. In his paper in 1993 A. Ol'shanskii gave a description
Minasyan, Ashot
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Obstructions to some injective oriented colourings
Theory and Applications of GraphsEach of several possible definitions of local injectivity for a homomorphism of an oriented graph $G$ to an oriented graph $H$ leads to an injective oriented colouring problem.
Russell J Campbell +2 more
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EMS 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.
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Signed Projective Cubes, a Homomorphism Point of View
Journal of Graph Theory, EarlyView.ABSTRACT The (signed) projective cubes, as a special class of graphs closely related to the hypercubes, are on the crossroad of geometry, algebra, discrete mathematics and linear algebra. Defined as Cayley graphs on binary groups, they represent basic linear dependencies.
Meirun Chen +2 more
wiley +1 more source