Аннотация:
В настоящей статье рассмотрена проблема построения оптимальных квадратурных формул в смысле Сарда в пространстве L(m)2(0,1). Здесь квадратурная сумма состоит из значений подынтегральной функции в узловых точках и значений первой, третьей и пятой производных подынтегральной функции в концевых точках интервала инегрирования. Найдены коэффициенты оптимальных квадратурных формул и вычислена норма оптимального функционала погрешности для любого натурального N и для любого m≥6 с использованием метода Соболева, основанном на дискретном аналоге дифференциального оператора d2m/dx2m. В частности, для m=6,7 оптимальность классической квадратурной формулы Эйлера–Маклорена доказана. Начиная с m=8 получены новые оптимальные квадратурные формулы.
Образец цитирования:
Kholmat M. Shadimetov, Farhod A. Nuraliev, “Optimal formulas of numerical integration with derivatives in Sobolev space”, Журн. СФУ. Сер. Матем. и физ., 11:6 (2018), 764–775
\RBibitem{ShaNur18}
\by Kholmat~M.~Shadimetov, Farhod~A.~Nuraliev
\paper Optimal formulas of numerical integration with derivatives in Sobolev space
\jour Журн. СФУ. Сер. Матем. и физ.
\yr 2018
\vol 11
\issue 6
\pages 764--775
\mathnet{http://mi.mathnet.ru/jsfu725}
\crossref{https://doi.org/10.17516/1997-1397-2018-11-6-764-775}
\isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=000452216700012}
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https://www.mathnet.ru/rus/jsfu725
https://www.mathnet.ru/rus/jsfu/v11/i6/p764
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