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JOURNALS // Sibirskii Zhurnal Vychislitel'noi Matematiki // Archive

Sib. Zh. Vychisl. Mat., 1998 Volume 1, Number 2, Pages 153–170 (Mi sjvm299)

This article is cited in 6 papers

On the $h$-$p$ version of the finite element method for one-dimensional boundary value problem with singularity of a solution

V. A. Rukavishnikov, A. Yu. Bespalov

Computing Center, Far-Eastern Branch, Russian Academy of Sciences, Khabarovsk

Abstract: The paper analyzes the $h$-$p$ version of the finite element method for a one-dimensional model boundary value problem with coordinated degeneration of initial data and with strong singularity of a solution. The scheme of the finite element method is constructed on the basis of the definition of $R_\nu$-generalized solution to the problem, and the finite element space contains singular power functions. By using meshes with concentration at a singular point and by constructing the linear degree vector of approximating functions in a special way, a nearly optimal two-sided exponential estimate is obtained for the residual of the finite element method.

UDC: 519.632

Received: 12.09.1997

Language: English



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