Results 31 to 40 of about 2,130,840 (372)

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

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2019
In the paper, computational schemes for solving the Cauchy problem for the singular integro-differential Prandtl equation with a singular integral over a segment of the real axis, understood in the sense of the Cauchy principal value, are constructed and
Galina A. Rasolko
doaj   +1 more source

On approximation of two-dimensional potential and singular operators [PDF]

open access: yesE-Journal of Analysis and Applied Mathematics, 2019
The purpose of this paper is the construction of second-order of accuracy quadrature formulas for the numerical calculation of the Vekua types two-dimensional potential and singular integral operators in the unit disk of complex plane.
Charyyar Ashyralyyev, Sedanur Efe
doaj   +1 more source

Explicit bounds of unknown function of some new weakly singular retarded integral inequalities for discontinuous functions and their applications

open access: yesJournal of Inequalities and Applications, 2017
The purpose of the present paper is to establish some new retarded weakly singular integral inequalities of Gronwall-Bellman type for discontinuous functions, which generalize some known weakly singular and impulsive integral inequalities.
Zizun Li, Wu-Sheng Wang
doaj   +1 more source

An explicit kernel-split panel-based Nystr\"om scheme for integral equations on axially symmetric surfaces [PDF]

open access: yes, 2016
A high-order accurate, explicit kernel-split, panel-based, Fourier-Nystr\"om discretization scheme is developed for integral equations associated with the Helmholtz equation in axially symmetric domains.
Helsing, Johan, Karlsson, Anders
core   +1 more source

Sparse Domination Theorem for Multilinear Singular Integral Operators with $L^{r}$-Hörmander Condition [PDF]

open access: yes, 2016
Tuomas Hytonen's ERC Starting Grant ``Analytic-probabilistic methods for borderline singular integrals''.
Kangwei Li
semanticscholar   +1 more source

Multilinear Singular Integral Forms of Christ-Journé Type [PDF]

open access: yesMemoirs of the American Mathematical Society, 2015
We prove $L^{p_1}(\mathbb R^d)\times \dots \times L^{p_{n+2}}(\mathbb R^{d})$ polynomial growth estimates for the Christ-Journ\'e multilinear singular integral forms and suitable generalizations.
A. Seeger, Charles K. Smart, B. Street
semanticscholar   +1 more source

TO THE QUESTION OF UNIQUENESS OF DEGENERATE SINGULAR INTEGRAL EQUATIONS SOLUTIONS

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2020
Background. The work is devoted to the study of sets of functions in which the condition for the unique solvability of degenerate singular integral equations is satisfied.
I. V. Boykov   +2 more
doaj   +1 more source

Gauge-Invariant Operators for Singular Knots in Chern-Simons Gauge Theory [PDF]

open access: yes, 1997
We construct gauge invariant operators for singular knots in the context of Chern-Simons gauge theory. These new operators provide polynomial invariants and Vassiliev invariants for singular knots.
Akutsu   +57 more
core   +2 more sources

On a singular integral [PDF]

open access: yesStudia Mathematica, 1987
Let n be a positive integer, and let \(R^ n\) denote the Euclidean n- dimensional space. If \(\Omega\) is homogeneous of degree 0, \(\Omega \in L^ q(S^{n-1})\), where \(q>1\) and \(\int_{S^{n-1}}\Omega d\sigma =0\), and if \(h(t)=h_ 0(| t|)\), where \(h_ 0\) is bounded, then the operator \(T^*\) is defined by \[ T^*(f)(x)=\sup_ ...
openaire   +3 more sources

Multilinear singular integrals [PDF]

open access: yesPublicacions Matemàtiques, 2002
We survey the thoery of multilinear singular integral operators with modulation symmetry. The basic example for this theory is the bilinear Hilbert transform and its multilinear variants. We outline a proof of boundedness of Carleson's operator which shows the close connection of this operator to multilinear singular integrals.
openaire   +6 more sources

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