Results 91 to 100 of about 8,913,878 (219)

A uniqueness theorem for Riesz potentials [PDF]

open access: yesSt. Petersburg Mathematical Journal, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On the differentiability of Riesz potentials of functions

open access: yesHiroshima Mathematical Journal, 1987
The Riesz potential of order \(\alpha\) of a nonnegative measurable function f on \(R^ n\) is defined by \(R_{\alpha}f(x)=\int R_{\alpha}(x-y)f(y)dy,\) where \(R_{\alpha}(x)=| x|^{\alpha - n}\) if \(\alpha 1\) and f be a nonnegative measurable function on \(R^ n\) such that \(R_ mf\not\equiv \infty\) and \[ \int f(y)^ p(\log (2+f(y))^{\delta} dyp-1. \]
openaire   +3 more sources

On Concavity and Supermodularity [PDF]

open access: yes
Concavity and supermodularity are in general independent properties. A class of functionals defined on a lattice cone of a Riesz space has the Choquet property when it is the case that its members are concave whenever they are supermodular.
Luigi Montrucchio, Massimo Marinacci
core  

Necessary and sufficient condition for the boundedness of the Gegenbauer-Riesz potential on Morrey spaces

open access: yes, 2018
WOS: 000433245300010In this paper, we study the Riesz potential (G-Riesz potential) generated by the Gegenbauer differential operator G(lambda) = (x(2) - 1()1/2-lambda) d/dx (x(2) - 1)(lambda+1/2) d/dx, x is an element of(1, infinity), lambda is an ...
Vagif S. Guliyev   +3 more
core   +1 more source

Spherical square functions of Marcinkiewicz type with Riesz potentials [PDF]

open access: yes, 2017
We prove a pointwise equivalence between a spherical square function composed with the Riesz potential and a Littlewood–Paley function arising from the Bochner–Riesz operators. Also, its application to the theory of Sobolev spaces will be given.
20162430   +5 more
core   +1 more source

Vector Solutions for Linearly Coupled Choquard Type Equations with Lower Critical Exponents

open access: yesAdvances in Mathematical Physics, 2020
The existence, nonexistence, and multiplicity of vector solutions of the linearly coupled Choquard type equations −Δu+V1xu=Iα∗uN+α/Nuα/N−1u+λv,x∈ℝN,−Δv+V2xv=Iα∗vN+α/Nvα/N−1v+λu,x∈ℝN,u,v∈H1ℝN, are proved, where α∈0,N, N≥3, V1xV2x∈L∞ℝN are positive ...
Huiling Wu
doaj   +1 more source

The Riesz-Bessel Fractional Diffusion Equation [PDF]

open access: yes, 2004
This paper examines the properties of a fractional diffusion equation defined by the composition of the inverses of the Riesz potential and the Bessel potential. The first part determines the conditions under which the Green function of this equation is
Anh, Vo V., McVinish, Ross S.
core   +1 more source

Space of images of the mixed Riesz hyperbolic B-potential and analytic continuation [PDF]

open access: yes, 2019
In this paper we prove semigroup properties for the mixed Riesz hyperbolic B-potential, find its analytic continuation and describe a space of images of mixed hyperbolic Riesz B-potentials.
Polovinkin, I.   +2 more
core   +1 more source

Estimates for capacities and traces of potentials

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
It is shown that “isoperimetric” inequalities, relating measures and capacities, hold for all sets in ℝn if they are valid for all balls. As a corollary, the necessary and sufficient conditions for the continuity of some imbeddings of M. Riesz and Bessel
V. G. Maz'ja, S. P. Preobrazenskii
doaj   +1 more source

The Stein-Weiss type inequalities for the B-Riesz potentials [PDF]

open access: yes, 2011
We establish two inequalities of Stein-Weiss type for the Riesz potential operator I?,? (B-Riesz potential operator) generated by the Laplace-Bessel differential operator ?B in the weighted Lebesgue spaces Lp,|x|ß,?.
Serbetci A.   +3 more
core   +1 more source

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