周颂平,ZHOU Ping,虞旦盛.均值有界变差条件及其在Fourier分析中的应用[J].数学研究及应用,2008,28(4):753~758
均值有界变差条件及其在Fourier分析中的应用
Mean Bounded Variation Condition and Applications in Fourier Analysis
投稿时间:2006-12-22  修订日期:2007-03-26
DOI:10.3770/j.issn:1000-341X.2008.04.002
中文关键词:  均值有界变差数列  三角级数  收敛  可积性  最佳逼近.
英文关键词:MVBVS  trigonometric series  convergence  integrability  best approximation.
基金项目:Open Funds of State Key Laboratory of Oil and Gas Reservoir and Exploitation of Southwest Petroleum University (No.PCN0613); NSERC of Canada; the NSERC RCD grant and AARMS of Cananda.
作者单位
周颂平 浙江理工大学数学所, 浙江 杭州 310028 
ZHOU Ping Department of Mathematics, Statistics and Computer Science, St. Francis University, Antigonish Nova Scotia Canada, B2G 2W5 
虞旦盛 浙江理工大学数学所, 浙江 杭州 310028 
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中文摘要:
      本文宣布了关于Fourier (三角)级数的系数数列单调性条件的一个最终推广.我们已经证明了该条件对正弦级数保持一致收敛性方面已不可作任何推广,一些Fourier分析中重要和有趣的经典定理也已经在此最终条件下重新建立.本文因而对长达90年的研究历史作了一个简要综述.这一系列论文中的第一篇原始论文公布在arXiv:math.CA/0611805 v1, November 27, 2006.
英文摘要:
      This announcement is to raise an ultimate generalization to monotonicity condition on the Fourier (trigonometric) coefficient sequences. We prove this condition cannot be weakened any further to guarantee the uniform convergence of the sine series. Some interesting and important classical results in Fourier analysis are re-established under this ultimate condition. Over ninty year research history is surveyed in this announcement.The first original paper of this series of papers is posted in arXiv:math.CA/0611805 v1, November 27, 2006.
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