2014/10/30 by Kh. M. Shadimetov, Shadimetov, Kh. M., A.R. Hayotov +3
Computer Science · Mathematics · #65D32 #FOS: Mathematics #Iterative Methods for Nonlinear Equations #Mathematical functions and polynomials #Matrix Theory and Algorithms #Numerical Analysis (math.NA)
paper · pdf · doi:10.48550/arxiv.1410.8423
openalex publication_date 2014/10/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In the present paper the problem of construction of optimal quadrature formulas in the sense of Sard in the space L2(m)(0,1)is considered. Here the quadrature sum consists of values of the integrand at nodes and values of the first and the third derivatives of the integrand at the end points of the integration interval. The coefficients of optimal quadrature formulas are found and the norm of the optimal error functional is calculated for arbitrary natural number N and for any m≥ 4 using S.L. Sobolev method which is based on discrete analogue of the differential operator d2m/dx2m. In particular, for m=4, 5 optimality of the classical Euler-Maclaurin quadrature formula is obtained. Starting from m=6 new optimal quadrature formulas are obtained.