Results 31 to 40 of about 4,929,978 (372)

On the inconsistency of the Bohm-Gadella theory with quantum mechanics [PDF]

open access: yes, 2006
The Bohm-Gadella theory, sometimes referred to as the Time Asymmetric Quantum Theory of Scattering and Decay, is based on the Hardy axiom. The Hardy axiom asserts that the solutions of the Lippmann-Schwinger equation are functionals over spaces of Hardy ...
Bohm A   +17 more
core   +2 more sources

Boundedness for Commutators of Rough p-Adic Hardy Operator on p-Adic Central Morrey Spaces

open access: yesJournal of Function Spaces, 2021
In the present article we obtain the boundedness for commutators of rough p-adic Hardy operator on p-adic central Morrey spaces. Furthermore, we also acquire the boundedness of rough p-adic Hardy operator on Lebesgue spaces.
Naqash Sarfraz   +2 more
doaj   +1 more source

Real‐variable characterizations of local Hardy spaces on spaces of homogeneous type [PDF]

open access: yesMathematische Nachrichten, 2019
Let (X,d,μ) be a space of homogeneous type, with upper dimension μ, in the sense of R. R. Coifman and G. Weiss. Let η be the Hölder regularity index of wavelets constructed by P. Auscher and T. Hytönen.
Ziyi He, Dachun Yang, Wen Yuan
semanticscholar   +1 more source

Dual spaces of anisotropic mixed-norm Hardy spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 2018
Let $\vec{a}:=(a_1,\ldots,a_n)\in[1,\infty)^n$, $\vec{p}:=(p_1,\ldots,p_n)\in(0,\infty)^n$ and $H_{\vec{a}}^{\vec{p}}(\mathbb{R}^n)$ be the anisotropic mixed-norm Hardy space associated with $\vec{a}$ defined via the non-tangential grand maximal function.
Long Huang   +3 more
semanticscholar   +1 more source

Hardy-type spaces and Hardy-type inequalities

open access: yesAIMS Mathematics
In the present paper, we defined and then studied Hardy spaces related to spherical mean operators. We proved Hardy-type inequalities, then we showed refined Sobolev-type inequalities between homogeneous Riesz-type spaces, homogeneous Besov-type spaces ...
Saifallah Ghobber, Hatem Mejjaoli
doaj   +1 more source

Variable exponent Hardy spaces associated with discrete Laplacians on graphs

open access: yes, 2017
In this paper we develop the theory of variable exponent Hardy spaces associated with discrete Laplacians on infinite graphs. Our Hardy spaces are defined by square integrals, atomic and molecular decompositions.
Almeida, Víctor   +3 more
core   +1 more source

Product Hardy Operators on Hardy Spaces [PDF]

open access: yesTokyo Journal of Mathematics, 2015
We study the product Hausdorff operator $H_{\Phi}$ on the product Hardy spaces, and prove that, for a nonnegative valued function $\Phi$, $H_{\Phi}$ is bounded on the product Hardy space $H^{1}(\mathbb{R}\times \mathbb{R})$ if and only if $\Phi$ is a Lebesgue integrable function on $(0,\infty)\times (0,\infty)$.
FAN, Dashan, ZHAO, Fayou
openaire   +2 more sources

A new approach to norm inequalities on weighted and variable Hardy spaces [PDF]

open access: yesAnnales Academiae Scientiarum Fennicae: Mathematica, 2019
We give new proofs of Hardy space estimates for fractional and singular integral operators on weighted and variable exponent Hardy spaces. Our proofs consist of several interlocking ideas: finite atomic decompositions in terms of $L^\infty$ atoms, vector-
D. Cruz-Uribe, Kabe Moen, H. Nguyen
semanticscholar   +1 more source

Sharp estimates for the p-adic Hardy type operators on higher-dimensional product spaces

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we introduce the p-adic Hardy type operator and obtain its sharp bound on the p-adic Lebesgue product spaces. Meanwhile, an analogous result is computed for the p-adic Lebesgue product spaces with power weights.
Ronghui Liu, Jiang Zhou
doaj   +1 more source

Hardy spaces of generalized analytic functions and composition operators

open access: yesConcrete Operators, 2018
We present some recent results on Hardy spaces of generalized analytic functions on D specifying their link with the analytic Hardy spaces. Their definition can be extended to more general domains Ω . We discuss the way to extend such definitions to more
Pozzi Elodie
doaj   +1 more source

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