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Apr 8, 2019 at 9:03 history edited Yidong Luo CC BY-SA 4.0
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Apr 7, 2019 at 1:12 history edited Yidong Luo CC BY-SA 4.0
deleted 214 characters in body
Apr 3, 2019 at 17:16 history edited Yidong Luo CC BY-SA 4.0
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Apr 3, 2019 at 17:09 history edited Yidong Luo CC BY-SA 4.0
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Apr 3, 2019 at 16:13 comment added Yidong Luo @ Willie Wong I think it needs. I will modify it in a while.
Apr 3, 2019 at 16:07 comment added Yidong Luo @ Jean Duchon It is really kind of you to specify the long-standing error in my basic knowledge for Sobolev spaces. Thank you, deeply!
Apr 3, 2019 at 14:49 comment added Willie Wong In the case of $C^\infty_{per}$, do you really not need the derivatives to match?
Apr 3, 2019 at 14:49 comment added Jean Duchon Your first definition is that of the periodic Sobolev space, not of the non-periodic one. The two coincide only for $s<1/2$, so it is not a good definition to let $s\to\infty$. I think you should clarify definitions before going further.
Apr 3, 2019 at 11:08 history asked Yidong Luo CC BY-SA 4.0