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Jul
22
awarded  Popular Question
May
24
awarded  Yearling
May
22
accepted definition of singular locus of a variety
May
21
asked definition of singular locus of a variety
May
15
awarded  Inquisitive
May
14
comment Torsion of homology group
For $n=3$,is the answer for my first question positive?
May
14
accepted Torsion of homology group
May
14
revised Torsion of homology group
added 31 characters in body
May
14
asked Torsion of homology group
May
4
accepted Definition of a fan of a polytope
May
2
asked Definition of a fan of a polytope
Apr
9
asked irreducible subvariety of a torus
Mar
25
comment $\Delta$-complex structure on $S^{2n-1}$
Actually I have the case n=1 and n=2,is it possible to show that the $2n$-skeleton is contractible?
Mar
25
asked $\Delta$-complex structure on $S^{2n-1}$
Oct
21
comment To show a morphism of affine k-varieties which is surjective on closed points is surjective
i get it now.thank you so much.
Oct
21
accepted To show a morphism of affine k-varieties which is surjective on closed points is surjective
Oct
21
comment To show a morphism of affine k-varieties which is surjective on closed points is surjective
Thank you for your reply.I have another quick question:why do the image containing a generic point imply that the map is onto?
Oct
19
comment To show a morphism of affine k-varieties which is surjective on closed points is surjective
do u remember the title of the question?I can't find it.Thank you.
Oct
19
asked To show a morphism of affine k-varieties which is surjective on closed points is surjective
Jul
2
awarded  Curious