Results 1 to 10 of about 89,551,811 (144)
Order, 2022 A mixed lattice is a lattice-type structure consisting of a set with two partial orderings, and generalizing the notion of a lattice. Mixed lattice theory has previously been studied in various algebraic structures, such as groups and semigroups, while ...
Jani Jokela
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Absorption in Invariant Domains for Semigroups of Quantum Channels
Annales de l'Institute Henri Poincare. Physique theorique, 2021 We introduce a notion of absorption operators in the context of quantum Markov processes. The absorption problem in invariant domains (enclosures) is treated for a quantum Markov evolution on a separable Hilbert space, both in discrete and continuous ...
R. Carbone, Federico Girotti
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Bipolar complex fuzzy semigroups
AIMS Mathematics, 2022 The notion of the bipolar complex fuzzy set (BCFS) is a fundamental notion to be considered for tackling tricky and intricate information. Here, in this study, we want to expand the notion of BCFS by giving a general algebraic structure for tackling ...
Ubaid ur Rehman, T. Mahmood, M. Naeem
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A combinatorial approach to the structure of locally inverse semigroups [PDF]
Semigroup Forum, 2019 This paper introduces a notion of presentation for locally inverse semigroups and develops a graph structure to describe the elements of locally inverse semigroups given by these presentations.
Luís Oliveira
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Almost Interior Gamma-ideals and Fuzzy Almost Interior Gamma-ideals in Gamma-semigroups
, 2021 Ideal theory plays an important role in studying in many algebraic structures, for example, rings, semigroups, semirings, etc. The algebraic structure Г-semigroup is a generalization of the classical semigroup. Many results in semigroups were extended to
W. Jantanan +3 more
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Dynamical properties and structure of Julia sets of postcritically bounded polynomial semigroups [PDF]
, 2007 We discuss the dynamic and structural properties of polynomial semigroups, a natural extension of iteration theory to random (walk) dynam- ics, where the semigroup G of complex polynomials (under the operation of composition of functions) is such that ...
Rich Stankewitz, Hiroki Sumi
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Semicrossed Products of Operator Algebras by Semigroups [PDF]
, 2014 We examine the semicrossed products of a semigroup action by $*$-endomorphisms on a C*-algebra, or more generally of an action on an arbitrary operator algebra by completely contractive endomorphisms.
K. Davidson +2 more
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Tent spaces associated with semigroups of operators [PDF]
, 2007 We study tent spaces on general measure spaces ( Ω , μ ) . We assume that there exists a semigroup of positive operators on L p ( Ω , μ ) satisfying a monotone property but do not assume any geometric/metric structure on Ω.
T. Mei
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Fast Fourier transforms for finite inverse semigroups [PDF]
, 2009 We extend the theory of fast Fourier transforms on finite groups to finite inverse semigroups. We use a general method for constructing the irreducible representations of a finite inverse semigroup to reduce the problem of computing its Fourier transform
Martin E. Malandro
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Decomposability and structure of semigroups of nonnegative r-potent operators on L2(X)
FilomatAn operator A on a separable Hilbert space L2(X) (where X is a separable locally compact Hausdorff Space) is called an r-potent operator if Ar = A for some natural number r [1]. For the special case of r = 2, an r-potent operator reduces to an idempotent
R. Thukral, A. Marwaha
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