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中国科学院数学与系统科学研究院期刊网
ISSN 1439-8516 CN 11-2039/O1
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N
-Widths and Average Widths of Besov Classes in Sobolev Spaces
Gui Qiao XU, Yong Sheng SUN, Yong Ping LIU
Acta Mathematica Sinica . 2006, (
6
): 1667 -1678 . DOI: 10.1007/s10114-005-0692-4