Results 31 to 40 of about 21,261 (117)
On a locally compact monoid of cofinite partial isometries of ℕ with adjoined zero
Topological Algebra and its Applications, 2022 Let 𝒞ℕ be a monoid which is generated by the partial shift α : n↦n +1 of the set of positive integers ℕ and its inverse partial shift β : n + 1 ↦n. In this paper we prove that if S is a submonoid of the monoid Iℕ∞ of all partial cofinite isometries of ...
Gutik Oleg, Khylynskyi Pavlo
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Quantum Dynamical Semigroups and Decoherence
Advances in Mathematical Physics, Volume 2011, Issue 1, 2011., 2011 We prove a version of the Jacobs‐de Leeuw‐Glicksberg splitting theorem for weak* continuous one‐parameter semigroups on dual Banach spaces. This result is applied to give sufficient conditions for a quantum dynamical semigroup to display decoherence. The underlying notion of decoherence is that introduced by Blanchard and Olkiewicz (2003).
Mario Hellmich, Christian Maes
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Smarandache U-liberal semigroup structure [PDF]
, 2009 In this paper, Smarandache U-liberal semigroup structure is given. It is shown that a semigroup S is Smarandache U-liberal semigroup if and only if it is a strong semilattice of some rectangular monoids. Consequently, some corresponding results on normal
Chen, Yizhi
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On Nonexpansive and Expansive Semigroup of Order-Preserving Total Mappings in Waist Metric Spaces
Journal of Nigerian Society of Physical Sciences, 2022 In this paper, we introduce nonexpansive and expansive semigroup of order-preserving total mappings (ONTn) and (OETn), respectively, to prove some fixed point theorems in waist metric spaces.
O. T. Wahab +3 more
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Characterizations of vector‐valued weakly almost periodic functions
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 5, Page 295-304, 2003., 2003 We characterize the weak almost periodicity of a vector‐valued, bounded, continuous function. We show that if the range of the function is relatively weakly compact, then the relative weak compactness of its right orbit is equivalent to that of its left orbit. At the same time, we give the function some other equivalent properties.
Chuanyi Zhang
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Fixed point theorems for a semigroup of total asymptotically nonexpansive mappings in uniformly convex Banach spaces [PDF]
Opuscula Mathematica, 2014 In this paper, we provide existence and convergence theorems of common fixed points for left (or right) reversible semitopological semigroups of total asymptotically nonexpansive mappings in uniformly convex Banach spaces.
Suthep Suantai, Withun Phuengrattana
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On disjoint unions of finitely many copies of the free monogenic semigroup [PDF]
, 2013 Every semigroup which is a finite disjoint union of copies of the free monogenic semigroup (natural numbers under addition) is finitely presented and residually finite.Peer ...
Ruskuc, Nik, Abughazalah, Nabilah
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Karpatsʹkì Matematičnì Publìkacìï, 2013 In this paper we study the semigroup $\mathcal{I}_{\,\infty}^{?\nearrow}(\mathbb{N})$ of partial co-finite almost monotone bijective transformations of the set of positive integers $\mathbb{N}$.
I. Ya. Chuchman, O. V. Gutik
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Multipliers on L(S), L(S)**, and LUC(S)* for a locally compact topological semigroup
International Journal of Mathematics and Mathematical Sciences, Volume 29, Issue 6, Page 355-359, 2002., 2002 We study compact and weakly compact multipliers on L(S), L(S)**, and LUC(S)*, where the latter is the dual of LUC(S). We show that a left cancellative semigroup S is left amenable if and only if there is a nonzero compact (or weakly compact) multiplier on L(S)**. We also prove that S is left amenable if and only if there is a nonzero compact (or weakly
Alireza Medghalchi
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Some algebraic universal semigroup compactifications
International Journal of Mathematics and Mathematical Sciences, Volume 26, Issue 6, Page 353-357, 2001., 2001 Universal compactifications of semitopological semigroups with respect to the properties satisfying the varieties of semigroups and groups are studied through two function algebras.
H. R. Ebrahimi-Vishki
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