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Mar
30
comment Multiplicative infinitesimals in q-analogs?
One can construct differential operators on deformed algebras, marrying the two notions.
Mar
30
comment Multiplicative infinitesimals in q-analogs?
Consider also deformation theory where $q$'s enter into the multiplication in such a way where $q^n=0$ for some $n$. Essentially, deformations with finite order.
Mar
18
comment Quantum Grassmannians?
These discussions are all valid approaches to quantum grassmannians. But more similar to the quantum projective space is the notion of quantum flag varieties--I.e. Those coming from quantum groups--which I worked out the gluing for the affine patches in my thesis...
Mar
11
comment A simple proof of the Weyl algebra's rigidity.
Although I'm not certain I've looked at this paper carefully, so I am again thankful for the reference.
Mar
11
comment A simple proof of the Weyl algebra's rigidity.
Thanks Murray. After asking this question many moons ago, I chatted with Anthony about this. I also chatted with you about this once, long ago. I appreciate the reference, however.
Feb
28
comment How do Schubert classes form a basis for $H^{*}(Gr(k, n))$?
A different way to start getting a handle on this is to read the example given in Griffiths and Harris for $\CC$. It is done with matrices which I found more approachable to start with.
Feb
25
comment Distribution of zeros and ones over matrix
Also not totally clear on the problem statement. Could you try to clean it up?
Feb
9
accepted 2-completeness analog of completeness theorem
Feb
9
comment Seeing stacks in the Calculus of Functors
Incredible, Dmitri, this question has been open for so long, and this seems like a great reply.
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