Results 51 to 60 of about 266 (166)
On Weakly Commutative Ordered Semigroups
Semigroup Forum, 1998 A partially ordered semigroup \((S, \cdot, \leq)\) is ``weakly commutative'' if for all \(a,b \in S\) there exist \(x\in S\) and a nonnegative integer \(n\) such that \((ab)^n \leq bxa\). It is ``archimedean'' if for all \(a,b\in S\) there exist \(x,y\in S\) and \(m\) such that \(a^m\leq xby\). It was shown by \textit{N.
Kehayopulu, N, Tsingelis, M
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An introduction of F-graphs, a graph-theoretic representation of natural numbers
International Journal of Mathematics and Mathematical Sciences, 1992 A special type of family graphs (F-graphs, for brevity) are introduced. These are cactus-type graphs which form infinite families under an attachment operation. Some of the characterizing properties of F-graphs are discussed.
E. J. Farrell
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A Note on Linear Codes over Semigroup Rings
Trends in Computational and Applied Mathematics, 2011 . In this paper, we introduced new construction techniques of BCH, alternant, Goppa, Srivastava codes through the semigroup ring B[X; 13Z0] instead of the polynomial ring B[X; Z0], where B is a finite commutative ring with identity, and for these ...
Antonio Aparecido de Andrade +2 more
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On Extending Commutative Semigroups of Isometries [PDF]
Bulletin of the London Mathematical Society, 1969 Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/135310/1/blms0157 ...
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Security analysis of public-key cryptosystems based on matrix action problem against quantum attack
Tongxin xuebao, 2023 As a generalization of the discrete logarithm problem, semigroup action problem has important applications in the design of public-key cryptography.Public-key cryptosystems based on action problem of integer matrix semigroups on the direct product of ...
Huawei HUANG
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Труды Института системного программирования РАН, 2018 In this paper we study the equivalence problem in the model of sequential programs which assumes that some instructions are commutative and absorbing. Two instructions are commutative if the result of their executions does not depend on an order of their
V. V. Podymov, V. A. Zakharov
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Ulam’s Type Stability of Involutional-Exponential Functional Equations
Abstract and Applied Analysis, 2014 Let S be a commutative semigroup, f,g:S→C and σ:S→S an involution. In this paper we consider the stability of involution-exponential functional equations fx+σy-gxfy≤ϕxresp., ϕy, |f(x+σy)-f(x)g(y)|≤ϕ(x) [resp., ϕ(y)] for all x,y∈S, where ϕ:S→R ...
Jaeyoung Chung
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Derivations and KMS-Symmetric Quantum Markov Semigroups. [PDF]
Commun Math Phys, 2023 Vernooij M, Wirth M.
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Fractal and FractionalIn the theory of Banach algebras, we use the Schauder fixed-point theorem to obtain some results that concern the existence property for mild solutions of fractional Cauchy problems that involve the Lie bracket operator, the almost sectorial operator ...
Faten H. Damag +2 more
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The Structure of φ-Module Amenable Banach Algebras
Abstract and Applied Analysis, 2014 We study the concept of φ-module amenability of Banach algebras, which are Banach modules over another Banach algebra with compatible actions. Also, we compare the notions of φ-amenability and φ-module amenability of Banach algebras. As a consequence, we
Mahmood Lashkarizadeh Bami +2 more
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