Dima Pasechnik's user avatar
Dima Pasechnik's user avatar
Dima Pasechnik's user avatar
Dima Pasechnik
  • Member for 13 years, 3 months
  • Last seen this week
14 votes
2 answers
1k views

inverse limits of group algebras and profinite groups

13 votes
1 answer
709 views

a normal form for matrices over Z[x]/(x^2-1) ?

11 votes
5 answers
1k views

area of triangle from coefficients of its cubic?

8 votes
2 answers
477 views

asymptotic for the number of involutions in GL(n,2)

8 votes
1 answer
695 views

A direct proof of a property of symmetric 2x2-determinants

8 votes
1 answer
376 views

projective plane cubics with exactly 9 real points

7 votes
1 answer
325 views

2x2-determinantal representations of cubic curves

7 votes
1 answer
235 views

Do convex closed semialgebraic hyperplane cross-sections imply semi-algebraicity?

7 votes
2 answers
334 views

non-rigidity of interior points in polyhedral triangulations?

6 votes
1 answer
1k views

do you know this determinant (basic commutative algebra)?

5 votes
1 answer
304 views

projective representations of a finite group over reals

5 votes
1 answer
419 views

centralizer of the order 2^k cyclic permutation matrix over F_2

5 votes
1 answer
257 views

polynomial maps from reducible plane curves to conics

5 votes
1 answer
266 views

speeding up Gosper and WZ algorithms

5 votes
2 answers
244 views

name for a polytope constructed from a system of linear equations?

5 votes
1 answer
241 views

Pythagorean numbers of real cyclotomic fields

4 votes
1 answer
202 views

Epstein zeta function of Barnes-Wall and related lattices

4 votes
1 answer
451 views

is every positive real cyclotomic number the norm of a cyclotomic?

4 votes
1 answer
147 views

complexity of bounded knapsack with spoilage

4 votes
3 answers
327 views

lines through A_n reflection arrangement and permutations

4 votes
2 answers
382 views

a group from a family of bijections X->Y

4 votes
1 answer
296 views

Presentations for complex involutory reflection groups

3 votes
1 answer
477 views

primitive root 2 in (Z/pZ)* for prime p and generating GF(2^{p-1})

3 votes
1 answer
466 views

from affine matroid to measures

3 votes
1 answer
187 views

representations with centralizer stable under conjugate transpose

3 votes
0 answers
148 views

Fantappie transform(ation)s in Gelfand et al. "Generalized functions"

3 votes
0 answers
81 views

Signed triangulations of simplicial polyhedra

3 votes
1 answer
51 views

describing embedding $U_3(q)<O_6^-(q)$, $q$ even

3 votes
1 answer
164 views

relations between 4 plane conics

3 votes
1 answer
127 views

embedding of $O_4^-(q)$ in $U_4(q)$