Convergence of a Numerical Method for Solving a Hypersingular Integral Equation on a Segment with the Use of Piecewise Linear Approximations on a Nonuniform Gridстатья
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Аннотация:A numerical scheme has been constructed for solving a linear hypersingular integral
equation on a segment with the integral treated in the sense of the Hadamard principle value by
the method of piecewise linear approximations on an arbitrary nonuniform grid, with the hypersingular
integral being regularized by approximating the unknown function with a constant in
a small neighborhood of the singular point. The radius of the neighborhood can be chosen independently
of the grid pitch, the latter understood as the maximum distance between the nodes.
The uniform convergence of the obtained numerical solutions to the exact solution is proved
as the grid pitch and the radius of the neighborhood in which the regularization is performed
simultaneously tend to zero.