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Fast numerical computations of oscillatory singular integrals

Fast numerical computations of oscillatory singular integrals
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摘要 The oscillatory singular integrals we will consider are T(f)(x)=∫<sub>R</sub><sup>n</sup>e<sup>iπp(x,y)</sup>k(x-y)f(y)dy, (1) where k(x) is a Calderon-Zygmund standard kernel, i. e. k(x)=Ω(x)/|x|<sup>n</sup>, where Ω(x) is a homogeneous function and has enough smoothness on the unit sphere of R<sup>n</sup>, and p(x, y) is an arbitrary real-valued polynomial. The purpose of this note is to prove the following theorem.
作者 邓东皋
出处 《Chinese Science Bulletin》 SCIE EI CAS 1995年第22期1849-1853,共5页
基金 the National Natural Science Foundation of China and the Foundation of Zhongshan University Advanced Research Centre.
关键词 OSCILLATORY SINGULAR INTEGRAL local COSINE BASIS SPARSE matrix. oscillatory singular integral local cosine basis sparse matrix
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