Zhejiang Daxue xuebao. Lixue ban (Sep 2012)

The double higher Lipschitz classes and the double Fourier series(二元高阶Lipschitz函数类和二重Fourier级数)

  • GUORu-qian(郭汝倩),
  • WEIBao-rong(韦宝荣),
  • YUDan-sheng(虞旦盛)

DOI
https://doi.org/10.3785/j.issn.1008-9497.2012.05.003
Journal volume & issue
Vol. 39, no. 5
pp. 501 – 506

Abstract

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利用二元函数的(r,s)阶差分和二元连续模函数定义了二元周期函数的高阶Lipschitz函数类Λr, s(ω)和λr, s(ω),并且从函数Fourier级数的系数出发,在复数域内给出了函数属于二元周期函数类的充分条件,在实数域内给出了函数属于二元周期函数类的充要条件.

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