期刊
BIT NUMERICAL MATHEMATICS
卷 44, 期 4, 页码 755-772出版社
SPRINGER
DOI: 10.1007/s10543-004-5243-3
关键词
high oscillation; quadrature; asymptotic expansions; Filon's integration; error control
The main theme of this paper is the construction of efficient, reliable and affordable error bounds for two families of quadrature methods for highly oscillatory integrals. We demonstrate, using asymptotic expansions, that the error can be bounded very precisely indeed at the cost of few extra derivative evaluations. Moreover, in place of derivatives it is possible to use finite difference approximations, with spacing inversely proportional to frequency. This renders the computation of error bounds even cheaper and, more importantly, leads to a new family of quadrature methods for highly oscillatory integrals that can attain arbitrarily high asymptotic order without computation of derivatives.
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