Results 21 to 30 of about 5,388,871 (377)

Path Integral for the Dirac Equation [PDF]

open access: yes, 1998
A c-number path integral representation is constructed for the solution of the Dirac equation. The integration is over the real trajectories in the continuous three-space and other two canonical pairs of compact variables controlling the spin and the ...
Polonyi, Janos
core   +4 more sources

Distribution theory for Schr\"odinger's integral equation [PDF]

open access: yes, 2015
Much of the literature on point interactions in quantum mechanics has focused on the differential form of Schr\"odinger's equation. This paper, in contrast, investigates the integral form of Schr\"odinger's equation.
Albeverio S.   +8 more
core   +3 more sources

On a pseudo-Volterra nonhomogeneous integral equation

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2019
In this paper the issues of the solvability of a pseudo-Volterra nonhomogeneous integral equation of the second kind are studied. The solution to the corresponding homogeneous equation and the classes of the uniqueness of the solution are found in [1 ...
M.T. Kosmakova   +3 more
doaj   +1 more source

A Multilevel Iteration Method for Solving a Coupled Integral Equation Model in Image Restoration

open access: yesMathematics, 2020
The problem of out-of-focus image restoration can be modeled as an ill-posed integral equation, which can be regularized as a second kind of equation using the Tikhonov method.
Hongqi Yang, Bing Zhou
doaj   +1 more source

Numerical solution of the integral form of the resummed Balitsky-Kovchegov equation [PDF]

open access: yes, 2013
The Balitsky--Kovchegov (BK) evolution equation in its resummed integral form as obtained in JHEP 1202 (2012) 117 and arXiv:1206.1223 is considered. We solve it numerically and compare to the unresummed BK equation formulated as an integral equation and ...
Kutak, Krzysztof   +2 more
core   +2 more sources

The Modified Integral Transform Method to Solve Heat Equation in a Cylindrical Coordinate [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2021
This paper investigated a modified integral transform method used to solve heat equation in cylindrical coordinate, this modification method has been obtained based on  integral transform (x-coordinate), we expand  integral transform (x ...
Ahmed Jalal, Ahmed Jassim
doaj   +1 more source

An approximation method for the solution of nonlinear integral equations [PDF]

open access: yes, 2006
A Chebyshev collocation method has been presented to solve nonlinear integral equations in terms of Chebyshev polynomials. This method transforms the integral equation to a matrix equation which corresponds to a system of nonlinear algebraic equations ...
Akyuz-Dascioglu, A, Yaslan, HC
core   +3 more sources

Integral equation mei applied to three-dimensional arbitrary surfaces [PDF]

open access: yes, 1997
The authors present a new formulation of the integral equation of the measured equation of invariance (MEI) as a confined field integral equation discretised by the method of moments, in which the use of numerically derived testing functions results in ...
Mosig, J R   +3 more
core   +2 more sources

A New Integral Transform for Solving Integral and Ordinary Differential Equations [PDF]

open access: yesMathematics and Computational Sciences
In this research paper, we introduce a new transform belonging to the class of Laplace transforms, called the Yasser-Jassim Transform (YJ Transform). We explore its properties and compare it to the classical Laplace transform.
Mohammed Yasser, Hassan Jassim
doaj   +1 more source

New integral equation approach to solution of diffusion equation

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The paper concerns the theoretical derivation of a new formulation for solution of the initial-boundary value problems for the diffusion equation. The global and local integral equations are derived by using the fundamental solution for the Laplace ...
Vladimίr Sladek   +2 more
doaj  

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