857 reputation
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location China
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visits member for 3 years, 5 months
seen 3 hours ago

a teacher at university in china who is not a mathematician.:)


Sep
15
comment When is there a polynomial transformation?
Eventually,the post has been closed, but some of the questions are still open.
Sep
15
revised Solve a PDE related to free boundary problem
fixed grammar
Sep
15
suggested suggested edit on Solve a PDE related to free boundary problem
Sep
15
revised When is there a polynomial transformation?
added 16 characters in body
Sep
15
comment When is there a polynomial transformation?
@PietroMajer,I had gotten another approach when I left several minute ago, the first question of the first part seems to be somehow easy. But thank you for you comment. Let me think about those questions thoroughly again, and I hope we can give condition on when there is a polynomial transformation
Sep
15
revised When is there a polynomial transformation?
added 6 characters in body
Sep
15
revised Is it easy to prove that $\sum_n |X(\mathbb{F}_{q^n})| t^n$ is rational?
fixed grammar
Sep
15
comment When is there a polynomial transformation?
@AndresCaicedo, an answer on MSE has been deleted since the answerer has misunderstood the questions completely.
Sep
15
suggested suggested edit on Is it easy to prove that $\sum_n |X(\mathbb{F}_{q^n})| t^n$ is rational?
Sep
15
comment When is there a polynomial transformation?
Now three vote to close the post, and even no comment to give reason.
Sep
15
revised When is there a polynomial transformation?
added 121 characters in body
Sep
15
comment When is there a polynomial transformation?
@AndresCaicedo,it is five hours now, and I have not gotten even a comment.
Sep
15
comment When is there a polynomial transformation?
@GerryMyerson, Thank you for reminding me. done.
Sep
15
revised When is there a polynomial transformation?
added 121 characters in body
Sep
15
asked When is there a polynomial transformation?
Sep
13
answered Distance between two distribution of image
Sep
13
accepted What are the formula of representation of quasicrystals and the law or mechanism of the formation
Sep
13
comment What are the formula of representation of quasicrystals and the law or mechanism of the formation
@DouglasZare,thank you for your comment.Yes I have to do more research in advance.You know,I have some physics knowledge,so sometimes it is somehow easy for me to understand a question in term of physics.
Sep
13
comment What are the formula of representation of quasicrystals and the law or mechanism of the formation
Thank you,your answers are always helpful
Sep
13
comment What are the formula of representation of quasicrystals and the law or mechanism of the formation
Why to downvote the post?Hao Wang had a book on mathematical logic part of which is about tiling plane and recursion. But he has not made any connection between quasi-crystals and tiling.I vaguely recall that some famous physicist (C.N. Yang?) has comment on such a connection.