Weighted bounds for variational Fourier series
Weighted bounds for variational Fourier series
复制标题
变分傅里叶级数的加权界限
DOI:
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
M. Lacey
中科院分区:
文献类型:
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作者:
Yen Q. Do;M. Lacey
For 1<p<infty and for weight w in A_p, we show that the r-variation of the Fourier sums of any function in L^p(w) is finite a.e. for r larger than a finite constant depending on w and p. The fact that the variation exponent depends on w is necessary. This strengthens previous work of Hunt-Young and is a weighted extension of a variational Carleson theorem of Oberlin-Seeger-Tao-Thiele-Wright. The proof uses weighted adaptation of phase plane analysis and a weighted extension of a variational inequality of Lepingle.
DOI:
10.48550/arxiv.1110.6031
发表时间:
2011
期刊:
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影响因子:
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作者:
Bennett J
通讯作者:
Bennett J