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Author Averbuch, A. ♦ Braverman, E. ♦ Coifman, R. ♦ Israeli, M. ♦ Sidi, A. ♦ Greengard, F.
Source CiteSeerX
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Description The integral ∫ L 0 e iνφ(s,t) f(s)ds with a highly oscillatory kernel (large ν, ν is up to 2000) is considered. This integral is accurately evaluated with an improved trapezoidal rule and effectively transcribed using local Fourier basis and adaptive multiscale local Fourier basis. The representation of the oscillatory kernel in these bases is sparse. The coefficients after the application of local Fourier transform are smoothed. Sometimes this enables us to obtain further compression with wavelets. © 2000 Academic Press 1.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2000-01-01
Publisher Institution Local Fourier Bases, Applied and Computational Harmonic Analysis, 9:1