Results 71 to 80 of about 112,333 (192)
On a Functional Equation Associated with (a,k)-Regularized Resolvent Families
Abstract and Applied Analysis, 2012 Let a∈Lloc1(ℝ+) and k∈C(ℝ+) be given. In this paper, we study the functional equation R(s)(a*R)(t)-(a*R)(s)R(t)=k(s)(a*R)(t)-k(t)(a*R)(s), for bounded operator valued functions R(t) defined on the positive real line ℝ+.
Carlos Lizama, Felipe Poblete
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Common fixed point theorems for left reversible and near-commutative semigroups and applications
Journal of Inequalities and Applications, 2005 We prove some common fixed point theorems for left reversible and near-commutative semigroups in compact and complete metric spaces, respectively.
Kang Shin Min, Liu Zeqing
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Penentuan Hiperstruktur Aljabar dan Karakteristiknya dalam Masalah Pewarisan Biologi
Jambura Journal of MathematicsThis article discusses the application of mathematics in biological inheritance problems, which are closely linked to mathematical studies, particularly in algebraic hyperstructures, including hypergroupoids, hypergroups, and -semigroups.
Alifa Raida Alamsyah +2 more
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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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Smarandache Soft Semigroups and their Properties
Journal of New Theory, 2015 – In this paper, the notions of smarandache soft semigroups (SS-semigroups) introduced for the first time. An SS-semigroup ( , ) is basically a parameterized collection of subsemigroups which has F A is basically a parameterized collection of ...
Mumtaz Ali
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Zhejiang Daxue xuebao. Lixue ban, 2013 通过可换偏序半群的正锥P1、偏序幺子半群P、包含P的子幺半群M和可换偏序半群关于包含偏序幺子半群P的子幺半群的偏序扩张，对可换偏序半群的偏序同态和商序同态的性质进行了刻画，并得到了一些重要结论.
SHAOHai-qin(邵海琴) +3 more
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Derivations and KMS-Symmetric Quantum Markov Semigroups. [PDF]
Commun Math Phys, 2023 Vernooij M, Wirth M.
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Epimorphisms, dominions and $$\mathcal {H}$$-commutative semigroups
Semigroup Forum, 2020 N. Alam, P. Higgins, N. Khan
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On new symbolic key exchange protocols and cryptosystems based on a hidden tame homomorphism
Доповiдi Нацiональної академiї наук УкраїниMultivariate cryptosystems are divided into public rules, for which tools of encryption are open for users and systems of the El Gamal type, for which the encryption function is not given in public, and, for its generation, the opponent has to solve a ...
V.A. Ustimenko
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Cancellative commutative semigroups
Semigroup Forum, 1970 The study of t.c.r. (=totally cancellative reduced) real semigroups (which are just convex cones in real vector spaces, with the induced addition) enables us to answer some questions about t.c.r. semigroups in general. For example, a finite-dimensional divisible commutative semigroups is locally free if and only if it is t.c.r.
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