bio  website  mate.dm.uba.ar/~aldoc9 

location  Buenos Aires  
age  41  
visits  member for  5 years, 6 months 
seen  7 hours ago  
stats  profile views  19,938 
1d

comment 
Singular projective variety where the Cartan homomorphism is not an isomorphism?
The Hilbert series in that situation converges to a rational function which can be evaluated at everything which is not a pole. 
1d

comment 
Singular projective variety where the Cartan homomorphism is not an isomorphism?
You talk about a linked question in your question but there is no link? 
Apr 23 
comment 
When does Vopěnka's principle hold?
What is $0^\sharp$? : 
Apr 23 
comment 
unfolding as resolution
I've always associated that with blowups. 
Apr 23 
comment 
Must an algebraic variety with trivial tangent bundle be an abelian variety?
What a beautiful theorem. 
Apr 20 
revised 
When is an algebra of commuting matrices (contained in one) generated by a single matrix?
deleted 1 character in body 
Mar 28 
comment 
Are there any Algebraic Geometry Theorems that were proved using Combinatorics?
Mathematical truth has very few sources. Arithmetic is one, combinatorics is another. Most things have a genealogy which goes all the way to these true Adam and Eves, through a surprisingly short chain of begats. 
Mar 24 
awarded  Good Answer 
Mar 17 
awarded  Nice Answer 
Mar 7 
comment 
Hochschild cohomology of the skew group ring D(X)#G in the complex analytic case
It would probably be a good idea to tell us what $D(X)$ is. 
Mar 7 
comment 
Replacing functors by topologically or simplicially enriched functors
«Do you really care about Top?» is a great line :) 
Mar 4 
awarded  Nice Answer 
Mar 2 
awarded  Disciplined 
Feb 27 
comment 
Defining the cup product in Ext using a Kunneth formula
I'd say that if you really know how to lift cocycles to chain maps in an example, you also know how to write down the diagonal map :) 
Feb 27 
comment 
Defining the cup product in Ext using a Kunneth formula
Sometimes, yes (specially when you only need to compute a few products, rather than the whole thing) but the reduction ofmcup products to conputations in the derived category is not a reduction, as the Principle of Conservation of Difficulty kicks in. 
Feb 15 
awarded  Popular Question 
Feb 12 
comment 
space at the Planck scale
That naive attempt at combining the two ideas is way too naive! 
Feb 5 
awarded  Nice Answer 
Jan 29 
comment 
How many geometric structures on manifolds are there?
You should probably make explicit what makes your question different from «what are the coverings of linear Lie groups?» which is what the comments are converging to. 
Jan 28 
comment 
Categorical proof subgroups of free groups are free?
The same is true of free Lie algebras: they are those of global dimension 1. 