Results 91 to 100 of about 1,200 (220)
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 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 ...
openaire +3 more sources
Derivations and KMS-Symmetric Quantum Markov Semigroups. [PDF]
Commun Math Phys, 2023 Vernooij M, Wirth M.
europepmc +1 more source
, 2012 In this thesis we consider in detail the following two fundamental problems for semigroup presentations: 1. Given a semigroup find a presentation defining it. 2. Given a presentation describe the semigroup defined by it.
Ruškuc, Nik
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All Reg-solid varieties of commutative semigroups
, 2009 We determine all regular solid varieties of commutative semigroups. Each of them is contained in the Reg- hyperequational class V (RC) defined by the associative law and the commutative law, and every subvariety of V (RC) is regular solid. In the present
Koppitz, Jörg
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Commutative zeropotent semigroups with few invariant congruences [PDF]
, 2008 summary:Commutative semigroups satisfying the equation $2x+y=2x$ and having only two $G$-invariant congruences for an automorphism group $G$ are considered.
Bashir, Robert El, Kepka, Tomáš
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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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