利用复分析中推广的Cauchy留数定理与奇异积分方程中的Plemelj 公式,首次给出了 Cauchy型积分与 Fourier积分之间的关系,并得出了单侧的 Fourier积分的性质,然后给予证明。%In this paper,by using the Residue theorem and Plemelj formula,the relation of Cauchy type integral and Fourier integral is given,and the properties of the one-sided Fourier integral are proved.
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