Results 21 to 30 of about 1,048,002 (287)

A Numerical Study for the Dirichlet Problem of the Helmholtz Equation

open access: yesMathematics, 2021
In this paper, an effective numerical method for the Dirichlet problem connected with the Helmholtz equation is proposed. We choose a single-layer potential approach to obtain the boundary integral equation with the density function, and then we deal ...
Yao Sun, Shijie Hao
doaj   +1 more source

A new technical for solving a weakly singular integro-differential equations

open access: yesJournal of Taibah University for Science, 2017
In this work, we transform a weakly singular integro-differential equations with logarithmic kernel to singular integral equations of Cauchy type and we prove by regularization the existence and uniqueness of the solution of this equations.
Mostefa Nadir
doaj   +1 more source

The Szegő kernel as a singular integral kernel on a family of weakly pseudoconvex domains [PDF]

open access: yesTransactions of the American Mathematical Society, 1987
The Szegö kernels on the weakly pseudoconvex domains { Im ⁡
openaire   +2 more sources

A Regularization of Fredholm type singular integral equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We present a method to regularize first and second kind integral equations of Fredholm type with singular kernel. By appropriate application of the Poincaré-Bertrand formula we change such integral equations into a second kind Fredholm's integral ...
N. Aliev, S. Mohammad Hosseini
doaj   +1 more source

On multi-singular integral equations involving n weakly singular kernels

open access: yesFilomat, 2018
We deal with some sources of Banach spaces which are closely related to an important issue in applied mathematics i.e. the problem of existence and uniqueness of the solution for the very applicable weakly singular integral equations. In the classical mode, the uniform space (C[a,b], ||.||?) is usually applied to the related discussion ...
Sales, S. M. S. Nabavi, Baghani, O.
openaire   +3 more sources

analysis of Product Integration Methods for a Class of Singular Volterra Integral Equations

open access: yesTrends in Computational and Applied Mathematics, 2000
The construction and analysis of high order numerical methods for Volterra integral equations with a certain weakly singular kernel have been investigated in [6], under the assumption the the solution is sufficiently smooth.
T. Diogo, P. Lima, N.B. Franco
doaj   +1 more source

Smoothness of Solutions of Volterra Integral Equations with Weakly Singular Kernels [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 1971
Differentiability of nonlinear Volterra integral equations of second kind with convolutional weakly singular ...
Miller, Richard K., Feldstein, Alan
openaire   +1 more source

Some new weakly singular integral inequalities and their applications to fractional differential equations

open access: yesJournal of Inequalities and Applications, 2016
Some new inequalities with weakly singular integral kernel are developed, which generalize some known inequalities and can be used in the qualitative and quantitative analysis of the solutions to certain fractional differential equations.
Run Xu, Fanwei Meng
doaj   +1 more source

Design of quadrature rules for Müntz and Müntz-logarithmic polynomials using monomial transformation [PDF]

open access: yes, 2009
A method for constructing the exact quadratures for Müntz and Müntz-logarithmic polynomials is presented. The algorithm does permit to anticipate the precision (machine precision) of the numerical integration of Müntz-logarithmic polynomials in terms of ...
Lombardi, Guido
core   +1 more source

The Combined Reproducing Kernel Method and Taylor Series for Solving Weakly Singular Fredholm Integral Equations [PDF]

open access: yes, 2016
In this paper, a numerical method is proposed for solving weakly singular Fredholm integral equations in Hilbert reproducing kernel space (RKHS). The Taylor series is used to remove singularity and reproducing kernel function are used as a basis.
Alvandi, Azizallah, Paripour, Mahmoud
core   +8 more sources

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