Results 31 to 40 of about 667,632 (136)

Regularity of the minimiser of one-dimensional interaction energies

open access: yes, 2019
We consider both the minimisation of a class of nonlocal interaction energies over non-negative measures with unit mass and a class of singular integral equations of the first kind of Fredholm type. Our setting covers applications to dislocation pile-ups,
Kimura, M., van Meurs, P.
core   +1 more source

A kind of boundary value problem for inhomogeneous partial differential system

open access: yesJournal of Inequalities and Applications, 2016
In this article, we first define a kind of generalized singular integral operator and discuss its properties. Then we propose a kind of boundary value problem for an inhomogeneous partial differential system in R 4 $R^{4}$ .
Yuying Qiao, Liping Wang, Guanmin Yang
doaj   +1 more source

Singular stochastic integral operators

open access: yes, 2020
In this paper we introduce Calder\'on-Zygmund theory for singular stochastic integrals with operator-valued kernel. In particular, we prove $L^p$-extrapolation results under a H\"ormander condition on the kernel.
Lorist, Emiel, Veraar, Mark
core  

Numerical solution of singular integro-differential Prandtl equation by the method of orthogonal polynomials

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2019
The paper is constructed and proved computational scheme for a solution of singular Prandtl of integro-differential  equations with singular integral over the interval of the real axis, understood in the sense of the Cauchy principal value.
Galina A. Rasolko
doaj  

The Carleman regularization technique in the modelling of the plane E‐polarized electromagnetic wave scattering by a flat system of impedance strips

open access: yesIET Microwaves, Antennas & Propagation, 2021
The Carleman method of analytical regularization is used to model the plane E‐polarized electromagnetic wave scattering by flat grating of a finite number of impedance strips. It is based on a modification of the singular integral equation technique, the
George I. Koshovy, Andrew G. Koshovy
doaj   +1 more source

A characterization for $B$-singular integral operator and its commutators on generalized weighted $B$-Morrey spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
We study the maximal operator $M_{\gamma}$ and the singular integral operator $A_{\gamma}$, associated with the generalized shift operator. The generalized shift operators are associated with the Laplace-Bessel differential operator.
J.J. Hasanov, I. Ekincioglu, C. Keskin
doaj   +1 more source

Gevrey expansions of hypergeometric integrals II

open access: yes, 2019
We study integral representations of the Gevrey series solutions of irregular hypergeometric systems under certain assumptions. We prove that, for such systems, any Gevrey series solution, along a coordinate hyperplane of its singular support, is the ...
Castro-Jiménez, Francisco-Jesús   +2 more
core   +1 more source

Analogue Sochocky formulae for integral operators with additional logarithmic singularity

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2018
In this paper we prove the limit formulas for singular integrals of the form. Limit values of such integrals are expressed in terms of singular integral operators and also integral operators.
Vitold V. Kashevski
doaj  

Computational and analytical models for differen-tial equations with approximate data on the basis of the submission of the decision of the integrals

open access: yesНаука. Инновации. Технологии, 2022
The case of ordinary differential equations of second order with functions known approximately describes a method that allows you to match the original equation corre-sponding integral Fredholm equation of the first kind and to find its numerical ...
Viktoria I. Naats   +2 more
doaj  

H-polarized plane wave scattering by graphene strip grating on top of a dielectric substrate

open access: yesВісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2022
Relevance. Graphene is relatively new material which properties can be controlled dynamically under external influence by applying electrostatic or magnetostatic field. Also graphene can absorb electromagnetic field. Graphene strips with substrate can be
M.E. Kaliberda, S. A. Pogarsky
doaj   +1 more source

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