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 Curious
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Jun
23
revised constructing Riemann surface of $\sqrt{z-1/z}$
deleted 4 characters in body
Jun
23
comment constructing Riemann surface of $\sqrt{z-1/z}$
oops, my bad. I've edited the question.
Jun
23
asked constructing Riemann surface of $\sqrt{z-1/z}$
Oct
12
accepted Question regarding morphism of ringed spaces
Oct
8
accepted Computing the homology of a triangle with the edges identified in cyclic order
Oct
8
comment Computing the homology of a triangle with the edges identified in cyclic order
@NajibIdrissi: Sorry to disturb you again, but can you kindly give me the definition of a delta complex, or suggest a proper reference for it, other than Hatcher? I think I am confused with the definition, because I can't understand your reasoning above.
Oct
8
comment Computing the homology of a triangle with the edges identified in cyclic order
@NajibIdrissi: Can you please clarify why the picture as given does not give a delta complex structure on the space?
Oct
8
answered Does $f(x)=ax$ intersect $g(x)=\sqrt{x}$
Oct
8
asked Computing the homology of a triangle with the edges identified in cyclic order
Sep
17
revised Frobenius splitting from viewpoint of commutative algebra
added 18 characters in body
Sep
17
asked Frobenius splitting from viewpoint of commutative algebra
Sep
4
asked question about gradation of a ring
Aug
28
accepted If $R\rightarrow S$ is faithfully flat then show that it is pure, and reference for purity
Aug
28
revised If $R\rightarrow S$ is faithfully flat then show that it is pure, and reference for purity
edited body
Aug
28
asked If $R\rightarrow S$ is faithfully flat then show that it is pure, and reference for purity
Jul
14
comment Why does the definition of an open subscheme / open immersion of schemes allow for an “extra” isomorphism?
Sir, can you kindly give some reference or give some idea on how to prove the the criterion for open immersion you have mentioned? I am in urgent need for the proof for my presentation.
Jul
13
comment The distinguished open sets are affine subschemes
@GeorgesElencwajg: Sir, can you kindly give any reference to the equivalence stated in second paragraph? I am in urgent need of knowing the proof.
Jul
2
awarded  Curious
Jun
22
accepted every continuous map $S^1 \rightarrow S^1$ can be extended to continuous map $B^2 \rightarrow B^2$
Jun
22
comment every continuous map $S^1 \rightarrow S^1$ can be extended to continuous map $B^2 \rightarrow B^2$
you are suggesting the composition $B^2 -0 \rightarrow S^1\rightarrow S^1\rightarrow B^2$, but I do not understand the last map $S^1\rightarrow B^2$. Can you explicitly state the map?