Results 31 to 40 of about 1,286,443 (317)

Virasoro vertex operator algebras, the (nonmeromorphic) operator product expansion and the tensor product theory [PDF]

open access: yes, 1995
In the references [HL1]--[HL5] and [H1], a theory of tensor products of modules for a vertex operator algebra is being developed. To use this theory, one first has to verify that the vertex operator algebra satisfies certain conditions.
Huang, Yi-Zhi
core   +2 more sources

Soliton Theory and Hankel Operators [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2015
Soliton theory and the theory of Hankel (and Toeplitz) operators have stayed essentially hermetic to each other. This paper is concerned with linking together these two very active and extremely large theories. On the prototypical example of the Cauchy problem for the Korteweg-de Vries (KdV) equation we demonstrate the power of the language of Hankel ...
Alexei Rybkin, Sergei M. Grudsky
openaire   +2 more sources

Tests of Basic Quantum Mechanics in Oscillation Experiments [PDF]

open access: yes, 1997
According to standard quantum theory, the time evolution operator of a quantum system is independent of the state of the system. One can, however, consider systems in which this is not the case: the evolution operator may depend on the density operator ...
D'Espagnat B   +7 more
core   +2 more sources

Approximation by a generalized class of Dunkl type Szász operators based on post quantum calculus

open access: yesJournal of Inequalities and Applications, 2019
The main purpose of this paper is to introduce a generalized class of Dunkl type Szász operators via post quantum calculus on the interval [12,∞) $[ \frac{1}{2},\infty )$.
Abdullah Alotaibi
doaj   +1 more source

On the order of approximation by modified summation-integral-type operators based on two parameters

open access: yesDemonstratio Mathematica, 2023
In this article, we the study generalized family of positive linear operators based on two parameters, which are a broad family of many well-known linear positive operators, e.g., Baskakov-Durrmeyer, Baskakov-Szász, Szász-Beta, Lupaş-Beta, Lupaş-Szász ...
Mohiuddine Syed Abdul   +2 more
doaj   +1 more source

Statistical weighted A-summability with application to Korovkin’s type approximation theorem

open access: yesJournal of Inequalities and Applications, 2016
We introduce the notion of statistical weighted A-summability of a sequence and establish its relation with weighted A-statistical convergence. We also define weighted regular matrix and obtain necessary and sufficient conditions for the matrix A to be ...
Syed Abdul Mohiuddine
doaj   +1 more source

Algebraic theory for the clique operator [PDF]

open access: yesJournal of the Brazilian Computer Society, 2001
In this text we attempt to unify many results about the K operator based on a new theory involving graphs, families and operators. We are able to build an ''operator algebra'' that helps to unify and automate arguments. In addition, we relate well-known properties, such as the Helly property, to the families and the operators.
Gutiérrez, Marisa, Meidanis, João
openaire   +5 more sources

Starlikness Associated with Cosine Hyperbolic Function

open access: yesMathematics, 2020
The main contribution of this article is to define a family of starlike functions associated with a cosine hyperbolic function. We investigate convolution conditions, integral preserving properties, and coefficient sufficiency criteria for this family ...
Abdullah Alotaibi   +3 more
doaj   +1 more source

Composite Operators and Topological Contributions in Gauge Theory [PDF]

open access: yes, 2001
In $D$-dimensional gauge theory with a kinetic term based on the p-form tensor gauge field, we introduce a gauge invariant operator associated with the composite formed from a electric $(p-1)$-brane and a magnetic $(q-1)$-brane in $D=p+q+1$ spacetime ...
Han, Yeong Deok, Lee, Jungjai
core   +3 more sources

Communication tasks in operational theories [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2020
Abstract We investigate the question which communication tasks can be accomplished within a given operational theory. The concrete task is to find out which communication matrices have a prepare-and-measure implementation with multiple states and a single measurement from a given theory, without using shared randomness.
Teiko Heinosaari   +2 more
openaire   +4 more sources

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