Results 1 to 10 of about 22,097 (141)
Bipolar complex fuzzy semigroups
AIMS Mathematics, 2023 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 +2 more
doaj +2 more sources
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
semanticscholar +3 more sources
Unary FA-Presentable Semigroups [PDF]
International journal of algebra and computation, 2012 Automatic presentations, also called FA-presentations, were introduced to extend nite model theory to innite structures whilst retaining the solubility of interesting decision problems.
Alan J. Cain, N. Ruškuc, R. Thomas
semanticscholar +3 more sources
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
semanticscholar +1 more source
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
semanticscholar +1 more source
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.
Lu'is Oliveira
semanticscholar +1 more source
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
semanticscholar +1 more source
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
semanticscholar +1 more source
Feller semigroups, Lp-sub-Markovian semigroups, and applications to pseudo-differential operators with negative definite symbols [PDF]
, 2001 The question of extending L-p-sub-Markovian semigroups to the spaces L-q, q > P, and the interpolation of LP-sub-Markovian semigroups with Feller semigroups is investigated.
Berlin +3 more
core +2 more sources
Tensor Constructions of Open String Theories II: Vector bundles, D-branes and orientifold groups [PDF]
, 1997 A generalized Chan-Paton construction is presented which is analogous to the tensor product of vector bundles. To this end open string theories are considered where the space of states decomposes into sectors whose product is described by a semigroup ...
Barton Zwiebach +18 more
core +2 more sources