A Lusin type approximation of Sobolev functions by smooth functions
1985 ◽
pp. 135-167
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Keyword(s):
2008 ◽
Vol 40
(7)
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pp. 73-80
Keyword(s):
Keyword(s):
2009 ◽
Vol 231
(2)
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pp. 680-695
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Keyword(s):