Results 31 to 40 of about 124,365 (283)

Boundedness and continuity of superposition operator on Er(p) and Fr(p) [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2002
Let X ∈ {Er(p)V , Fr(p)}, in this research, necessary and sufficient conditions are given for superposition operator to act from X into the space l1. Moreover, necessary and sufficient conditions are obtained for superposition operator acting from X into
Assa-aree Sama-ae
doaj  

Analytic Morrey Spaces and Bloch-Type Spaces

open access: yesJournal of Function Spaces, 2018
This paper is devoted to characterizing the boundedness of the Riemann-Stieltjes operators from analytic Morrey spaces to Bloch-type spaces. Moreover, the boundedness of the superposition operator and weighted composition operator on analytic Morrey ...
Ofori Samuel, Jianfei Wang, Yile Zhao
doaj   +1 more source

Space of State Vectors in PT Symmetrical Quantum Mechanics [PDF]

open access: yes, 2001
Space of states of PT symmetrical quantum mechanics is examined. Requirement that eigenstates with different eigenvalues must be orthogonal leads to the conclusion that eigenfunctions belong to the space with an indefinite metric.
Azizov T Ya   +13 more
core   +2 more sources

Formation of required distributions on the basis of decomposition by vortex eigen functions of a bounded non-paraxial propagation operator [PDF]

open access: yesКомпьютерная оптика, 2019
The solution of the problem of overcoming the diffraction limit based on the representation of an optical signal in the form of a superposition of communication modes matched with the vortex eigenfunctions of a bounded (in the object and spectral regions)
Svetlana Khonina   +2 more
doaj   +1 more source

Superposition operators on Dirichlet spaces [PDF]

open access: yesTohoku Mathematical Journal, 2004
Let \((\mathcal E, \mathcal D)\) be a strongly local, regular symmetric Dirichlet form. A function \(K\) is said to operate on \(\mathcal D\), if \(K\circ u \in \mathcal D\) for all \(u\in\mathcal D\). By the very definition of Dirichlet forms all normal contractions operate on \(\mathcal D\) and satisfy \(\mathcal E(K\circ u,K\circ u) \leq M^2\cdot ...
openaire   +3 more sources

A variational approach to dissipative SPDEs with singular drift [PDF]

open access: yes, 2017
We prove global well-posedness for a class of dissipative semilinear stochastic evolution equations with singular drift and multiplicative Wiener noise. In particular, the nonlinear term in the drift is the superposition operator associated to a maximal ...
Marinelli, Carlo, Scarpa, Luca
core   +3 more sources

Quantum Interference in the Kirkwood-Rihaczek representation [PDF]

open access: yes, 2002
We discuss the Kirkwood-Rihaczek phase space distribution and analyze a whole new class of quasi-distributions connected with this function. All these functions have the correct marginals.
Agarwal   +25 more
core   +2 more sources

Quantum conformal symmetries for spacetimes in superposition [PDF]

open access: yesQuantum
Without a complete theory of quantum gravity, the question of how quantum fields and quantum particles behave in a superposition of spacetimes seems beyond the reach of theoretical and experimental investigations.
Viktoria Kabel   +3 more
doaj   +1 more source

Weighted superposition operators on Fock spaces [PDF]

open access: yesRevista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas, 2022
AbstractWe characterize all pairs of entire functions $$(u,\psi )$$ ( u , ψ ) for which the induced weighted superposition operator $$S_{(u,\psi )}$$ S
openaire   +3 more sources

Weak convergence of inner superposition operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1998
The equivalence of the weak (pointwise) and strong convergence of a sequence of inner superposition operators is proved as well as the criteria for such convergence are provided. Besides, the problems of continuous weak convergence of such operators and of representation of a limit operator are studied.
Drakhlin M. E., Stepanov E.
openaire   +1 more source

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