bio | website | |
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location | Moscow | |
age | 24 | |
visits | member for | 3 years, 10 months |
seen | 1 hour ago | |
stats | profile views | 1,015 |
Aug 27 |
answered | linear section of codimension $k+1$ of a variety of dimension $k$ |
Aug 25 |
comment |
if V(f) is irreducible, then how to show that the polynomial f itself is irreducible?
This is not a research level question. |
Jun 4 |
answered | Why does restriction of Weil divisors “clearly” preserve principal-ness? |
May 15 |
comment |
Reference needed: Homology of the blow-up
Do you put any restrictions on $V$? |
May 14 |
answered | “Exactness” of groupify functor |
Mar 15 |
comment |
Dimension of a commuting nilpotent variety
I'd say that this is a no so trivial question. Namely, if you omit the "commute with $A$" condition, you get the variety of commuting nilpotent matrices. Its dimension is $n^2-1$, which is not obvious (see "The Variety of Pairs of Commuting Nilpotent Matrices is Irreducible" by Volodia Baranovsky). |
Feb 21 |
answered | Easy to state applications of dimension theory in algebraic geometry |
Feb 21 |
answered | Failure of Noether normalization |
Feb 12 |
awarded | Self-Learner |
Feb 11 |
awarded | Revival |
Feb 11 |
awarded | Scholar |
Feb 11 |
accepted | Iterated Pieri's rule, Schur functors and intersection of subrepresentations |
Feb 11 |
answered | Iterated Pieri's rule, Schur functors and intersection of subrepresentations |
Feb 11 |
asked | Equivariant derived category and invariant divisor |
Feb 8 |
comment |
For what varieties do we have results on the category of singularities?
You'd better call it "(triangulated) category of singularities". Not to confuse with smoothness. |
Feb 7 |
answered | Cohomology for Grassmannian |
Jan 26 |
comment |
Does quasi-projective imply quasi-compact (in the Zariski topology)?
@QiaochuYuan sure, that's actually a criterion. Thank you for the term though, have never heard of this one. |
Jan 26 |
comment |
Does quasi-projective imply quasi-compact (in the Zariski topology)?
@HugoChapdelaine no problem, happens to all of us |
Jan 26 |
answered | Does quasi-projective imply quasi-compact (in the Zariski topology)? |
Jan 26 |
comment |
Grothendieck group of intersection of quadrics
I personally don't see any problem here. As far as I'm concerned, an intersection of two even-dimensional quadrics has odd dimension. |