A Remark on Lower Bound of the Ratio of ||f-Sn(f)||/En(f)
Xu Dong LIN
Acta Mathematica Sinica, Chinese Series ›› 2005, Vol. 48 ›› Issue (3) : 573-576.
A Remark on Lower Bound of the Ratio of ||f-Sn(f)||/En(f)
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