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Apr
23
comment Acyclicity of the sheaf of real analytic differential forms
Lieber @Torsten. Großartig! Hauptsache, das Projekt wird fortgeführt: ich freue mich schon auf den zweiten Band!
Apr
22
awarded  Popular Question
Apr
18
comment Acyclicity of the sheaf of real analytic differential forms
Just shamelessly jumping on the opportunity to ask you: when will we have the joy to read the second volume of your co-authored masterful treatise ? :-)
Apr
11
revised When is a holomorphic submersion with isomorphic fibers locally trivial?
deleted 9 characters in body
Apr
8
answered Connected complement manifold
Apr
3
comment Interaction of topology and the Picard group of Algebraic surfaces
You seem to know that $H_2(X)$ has rank $7$. Why is that? (I would deduce this fact the other way round, from knowledge that the Euler charcteristic of $X$ is equal to the Chern class $c_2(T_X)=9$).
Mar
29
comment Exterior product
@jmc. Thanks for your example: I had never thought of that trap!
Mar
23
comment on the density of hypersurfaces in complex projective spaces
Thank you for answering, dear Duc [sorry I can't write your name correctly :-)]
Mar
22
comment on the density of hypersurfaces in complex projective spaces
Where does the explicit formula for squared distance come from?
Mar
21
awarded  Good Question
Mar
21
awarded  Popular Question
Mar
20
awarded  Good Answer
Mar
20
awarded  Nice Question
Mar
20
comment Did Bourbaki write a text on algebraic geometry?
Thank you for your encouragement, @jmc: I was a bit hesitant before posting both question and answer, which I had never done before.
Mar
20
awarded  Nice Answer
Mar
20
awarded  Self-Learner
Mar
20
asked Did Bourbaki write a text on algebraic geometry?
Mar
20
answered Did Bourbaki write a text on algebraic geometry?
Mar
12
awarded  Popular Question
Jan
30
awarded  Good Question