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Model. Anal. Inform. Sist., 2013, Volume 20, Number 3, Pages 121–129 (Mi mais316)  

The Optimal Quadrature Formula of Approximate Calculation of Curvilinear Integral of First Kind for Some Classes of Functions and Curves

K. Tukhliev

Khujand State University, Mavlonbekova, 1, Khujand, 735700, Tajikistan

Abstract: In this paper is considered the extreme problem of searching for the optimal quadrature formulas in S. M. Nikolskiy sense for approximate calculation of curvilinear integrals of first kind on the class of differentiable functions, the second gradient norm of which in $L_P (1 \le p < \infty)$ is bounded along the curve by which the curvilinear integral is calculated. The exact errors of optimal quadrature formula for the studied class of functions were calculated, and the explicit formulas for optimal nodes and coefficients was shown.

Keywords: quadrature formula, curvilinear integral, gradient, error, node.

Full text: PDF file (367 kB)
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UDC: 517.5
Received: 08.04.2013

Citation: K. Tukhliev, “The Optimal Quadrature Formula of Approximate Calculation of Curvilinear Integral of First Kind for Some Classes of Functions and Curves”, Model. Anal. Inform. Sist., 20:3 (2013), 121–129

Citation in format AMSBIB
\Bibitem{Tuk13}
\by K.~Tukhliev
\paper The Optimal Quadrature Formula of Approximate Calculation of Curvilinear Integral of First Kind for Some Classes of Functions and Curves
\jour Model. Anal. Inform. Sist.
\yr 2013
\vol 20
\issue 3
\pages 121--129
\mathnet{http://mi.mathnet.ru/mais316}


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