bio | website | |
---|---|---|
location | ||
age | ||
visits | member for | 4 years, 6 months |
seen | yesterday | |
stats | profile views | 1,306 |
Aug 13 |
accepted | orthogonal group in characteristic 2 |
Aug 13 |
comment |
orthogonal group in characteristic 2
Yes I meant the finite field of order 2, thank you! What is the precise book reference that you suggest? |
Aug 13 |
comment |
orthogonal group in characteristic 2
no, I am sorry, I should have explained. By even and odd I mean the Arf invariant of a quadratic form on a $\mathbb{Z}_2$-vector space. I will correct the question. |
Aug 13 |
asked | orthogonal group in characteristic 2 |
Jul 2 |
awarded | Inquisitive |
Jul 2 |
awarded | Curious |
Jun 30 |
comment |
Index of congruence modular subgroup of level (1,d)
Very nice proof. As far as I understand the same proof would not hold for even $d$, right? |
Jun 17 |
awarded | Investor |
Jun 9 |
comment |
Generating the symplectic group
There's a cute subgroup of $Sp(4, \mathbb{Z}_2)$ of index 6, which is the stablizer of an odd theta-characteristic (seen as a quadratic form on the 2-torsion point). I wonder if it is this one. |
Jun 8 |
awarded | Nice Question |
May 28 |
accepted | dimensions of strata of Pfaffian varieties |
May 28 |
asked | dimensions of strata of Pfaffian varieties |
May 12 |
awarded | Popular Question |
May 8 |
asked | Why “Fourier”-Mukai? |
Apr 28 |
awarded | Revival |
Apr 27 |
answered | Do mapping classes have gonality? |
Apr 19 |
asked | Parabolic bundles on elliptic curves |
Apr 13 |
comment |
13 months and not even one report. what would you do?
Hey actually it is over! It was accepted more or less one month ago. Thank you for your thought. |
Mar 27 |
accepted | Inserting maple or macaulay script in a paper |
Mar 27 |
comment |
Inserting maple or macaulay script in a paper
ok, some time go mathematical writng was ok even here, but nevermind |