Results 131 to 140 of about 6,505,496 (165)
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Semigroups of Operators and Polynomials of Generators of Bounded Strongly Continuous Groups
Proceedings of the London Mathematical Society, 1994Summary: Let \(iA_ j\) \((1\leq j\leq n)\) be commuting generators of bounded strongly continuous groups, \(P(A)= \sum_{| \alpha| \leq m} a_ \alpha A^ \alpha\) \((A^ \alpha= A_ 1^{\alpha_ 1} \dots A_ n^{\alpha_ n})\). By a constructive method, we show that \(P(A)\) generates an analytic semigroup, integrated semigroup or \(C\)-semigroup under different
Lei, Yansong, Yi, Wanhua, Zheng, Quan
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Generators for a subgroup of finite index in the unit group of an integral semigroup ring
Journal of Group Theory, 2004This paper is concerned with the unit group \(U_S\) of an integral semigroup ring \(\mathbb{Z} S\) of a finite semigroup \(S\). If \(\mathbb{Q} S\) is semisimple, then finitely many units \(u\in U_S\) with \([U_S:\langle u\rangle]
Dooms, Ann, Jespers, Eric
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On the generation of convolution semigroups on arbitrary locally compact groups II
Archiv der Mathematik, 1977In his paper [4] G. A. Hunt described the generating functional of a convolution semigroup on a Lie group (representation theorem). Furthermore he has shown that conversely certain functionals determine convolution semigroups (generation theorem). V~. Hazod [2] extended these results to arbitrary locally compact groups by Lie gToup approximation. In [5]
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Actions of Finitely Generated Groups and Semigroups on a Plane by Means of Isometries
Mathematical Notes, 2004Let \(G\) be a countable finitely generated group or semigroup equipped with a fixed set of generators, e.g., a group of isometries of an affine Euclidean plane. The author studies conditions under which orbits of the action of the group \(G\) are uniformly distributed and gives a criterion for every orbit to be dense.
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Compact symmetry groups and generators for sub-Markovian semigroups
Zeitschrift für Wahrscheinlichkeitstheorie und Verwandte Gebiete, 1983We consider closed infinitesimal operators L with dense domain D in the algebra of all continuous functions, vanishing at infinity, on a given locally compact Hausdorff space X. Necessary and sufficient conditions are given for L to be the infinitesimal generator of a strongly continuous sub-Markovian semigroup on C0(X).
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On groups and semigroups of matrices with spectra in a finitely generated field
Linear and Multilinear Algebra, 2005Let K be an algebraically closed field of characteristic zero and ...
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Sbornik: Mathematics, 2004
Summary: Actions by isometries on a Euclidean plane of free groups and free semigroups with arbitrarily many generators and of free products of groups of order 2 are considered. It is shown that in the typical case, all orbits of the action are uniformly distributed in the plane.
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Summary: Actions by isometries on a Euclidean plane of free groups and free semigroups with arbitrarily many generators and of free products of groups of order 2 are considered. It is shown that in the typical case, all orbits of the action are uniformly distributed in the plane.
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On Almost-Symmetry in Generalized Numerical Semigroups
Communications in Algebra, 2021Carmelo Cisto
exaly
Time Regularity for Generalized Mehler Semigroups
Mathematische Nachrichten, 2022Alessandra Lunardi
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On Right Weakly Regular Semigroups of Generalized Bipolar Fuzzy Subsemigroups
Missouri Journal of Mathematical Sciences, 2021Pannawit Khamrot
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