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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2015 Volume 55, Number 2, Pages 179–184 (Mi zvmmf10146)

Invariant Laplacian-involving cubature formulas

A. K. Ponomarenko

St. Petersburg State University, Universitetskaya nab. 7-9, St. Petersburg, 199034, Russia

Abstract: For integrals in n dimensions over a hypercube, two ninth-degree cubature formulas that are invariant with respect to a hyperoctahedral group are constructed. The cubature sums of these formulas contain the Laplacian. Examples are given in which approximate values of the formulas’ parameters are presented in the form of tables.

Key words: $n$-dimensional invariant cubature formula, group $O_n(G)$, hyperoctahedron, hypercube, Laplacian, basis invariant forms of $O_n(G)$.

UDC: 519.644.7

Received: 01.07.2014

DOI: 10.7868/S0044466915020155


 English version:
Computational Mathematics and Mathematical Physics, 2015, 55:2, 169–174

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