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Zhiyu
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comment
Iteration of a morphism and flatness
@LaurentMoret-Bailly Yes, I will add it, thank you.
accepted
Irreducible representation of the product of two groups and tensor product
revised
Irreducible representation of the product of two groups and tensor product
added 8 characters in body
asked
Irreducible representation of the product of two groups and tensor product
revised
Iteration of a morphism and flatness
edited tags
asked
Iteration of a morphism and flatness
revised
If a polynomial ring is a finite flat module over some subring, is that subring itself a polynomial ring?
edited tags
asked
If a polynomial ring is a finite flat module over some subring, is that subring itself a polynomial ring?
accepted
p-torsion in Picard group of simply-connected variety of char p
asked
p-torsion in Picard group of simply-connected variety of char p
comment
Existence of non-null-homotopic map from $M^n$ to $S^{n-1}$
@PiotrHajlasz It is difficult to choose one as the best.
awarded
 Nice Question
asked
Existence of non-null-homotopic map from $M^n$ to $S^{n-1}$
comment
Lefschetz trace formula over truncated Witt ring
That's very sad, but his mathematical writings and theorems remains forever.
comment
Sets of integers represented by products of $q(q^n-1)$
Fine, I agree with you.
comment
Sets of integers represented by products of $q(q^n-1)$
Could you please delete this answer? I found the problem boring so I want to delete it.
comment
Sets of integers represented by products of $q(q^n-1)$
Sorry, I have edited it to make it clear that $s_i$ can be the same.
revised
Sets of integers represented by products of $q(q^n-1)$
deleted 2 characters in body; edited tags
asked
Sets of integers represented by products of $q(q^n-1)$
comment
the algebraic closure of strict henselian DVR
Thank you, what you say looks like Krasner's lemma. Before I found something related in the tilting approach to the proof of Fontaine-Winterberger theorem while he didn't give a proof and I come across this problem while searching on mathoverflow.
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