User Lev Borisov

answered

An example of toric threefold

Mar 18, 2015 at 15:59

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Approve

Lifting DG-categories to characteristic zero

Feb 11, 2015 at 15:28

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Identities for ${~}_3\phi_1$?

@HjalmarRosengren I sent you an email with the actual identity (it turns out to be ${~}_3\phi_2$ on the other side). Hope you got it.

Jan 29, 2015 at 14:01

comment

Identities for ${~}_3\phi_1$?

Thanks! I think I made a bit of a mistake in the calculations and am now debugging. But III.8 looks very relevant indeed.

Jan 27, 2015 at 15:04

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Identities for ${~}_3\phi_1$?

Jan 26, 2015 at 18:34

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Expressions involving $q$-binomial coefficients?

Yup, got the sign wrong.

Jan 18, 2015 at 12:19

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Expressions involving $q$-binomial coefficients?

I am getting $q^{2a^2-a}(q^{2b+2-2a}-1)(q^{2b-4a+4};q^2)_{2a-1}/(q;q)_{2a}$...

Jan 18, 2015 at 2:48

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Expressions involving $q$-binomial coefficients?

I think your formula is a bit off, but I will surely figure it out now.

Jan 18, 2015 at 1:28

accepted

Expressions involving $q$-binomial coefficients?

Jan 18, 2015 at 1:16

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Expressions involving $q$-binomial coefficients?

Jan 17, 2015 at 14:53

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accepted

Are binomial coefficients $F_1$ analogs of $q$-binomial coefficients?

Jan 13, 2015 at 23:59

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Are binomial coefficients $F_1$ analogs of $q$-binomial coefficients?

Jan 13, 2015 at 20:30

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Colimit density and monads

Jan 12, 2015 at 0:16

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Generating subgroups of large index by a large chunk of a conjugacy class

In response to your edit, I am interested in the cases like $GL(n,q)$ where $n$ is fixed but the field size goes to infinity.

Dec 25, 2014 at 13:23

accepted

Generating subgroups of large index by a large chunk of a conjugacy class

Dec 25, 2014 at 12:36

comment

Generating subgroups of large index by a large chunk of a conjugacy class

Thanks, this makes perfect sense. What do you think will happen if $G$ is a Chevalley group with a fixed type of group but arbitrary finite field?

Dec 25, 2014 at 2:07

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Generating subgroups of large index by a large chunk of a conjugacy class

Dec 24, 2014 at 21:53

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Edit

geometric interpretation and differences of Gorenstein rings, Complete intersections and regular rings

Dec 12, 2014 at 16:18

revised

geometric interpretation and differences of Gorenstein rings, Complete intersections and regular rings

typos fixed, format edited

Dec 12, 2014 at 16:18

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Partitions of $\mathbb{R}^+$ into subset closed by sum and product

Dec 12, 2014 at 3:41

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