480 reputation
417
bio website
location Riga, Latvia
age 36
visits member for 3 years, 2 months
seen Oct 9 at 19:04

Associate Professor, PhD in condensed matter theory.


Sep
24
awarded  Autobiographer
Jul
2
awarded  Curious
Mar
8
accepted Proper name for the generalized binomial distribution with two trials?
Mar
7
comment Proper name for the generalized binomial distribution with two trials?
Thanks, but this probably won't help. The variability of $p_i$ in my case is deterministically tuned, and some data points for $P_n$'s even go beyond the generalized/overdispersed binomial constraint. Here is the physics context: physics.stackexchange.com/questions/61835
Mar
7
asked Proper name for the generalized binomial distribution with two trials?
Mar
5
accepted Eigenvalues of a submatrix
Mar
4
comment Eigenvalues of a submatrix
@max This argument proves quickly that $B_{xx}$ and $B_{yy}$ are between $0$ and $1$ but I'm worried about the off-diagonal element.
Mar
4
revised Eigenvalues of a submatrix
added 364 characters in body
Mar
4
comment Eigenvalues of a submatrix
@GitGud I'll edit to be more explicit
Mar
4
asked Eigenvalues of a submatrix
Jan
11
comment Has Prof. Otelbaev shown existence of strong solutions for Navier-Stokes equations?
From the web-page of the journal ( math.kz )it is not clear what are the editorial procedures and the peer review policy. It seems more of a provincial proceedings journal not refereed outside the Alamty math community.
Jan
11
comment Has Prof. Otelbaev shown existence of strong solutions for Navier-Stokes equations?
I'm fluent in Russian but not that much in techniques used in the paper. In my view, the introduction is not very helpful, quoting works of importance (in author's view), but not explaining the intuition that has led to the claimed breakthrough.
Jan
11
revised Has Prof. Otelbaev shown existence of strong solutions for Navier-Stokes equations?
spelling of Kazakh nationality corrected
Jan
3
comment Singular value decomposition of an arbitrary anti-symmetric ($A=-A^{T}$) complex matrix
@user1551 In the introduction to Youla's 1964 paper (cms.math.ca/10.4153/CJM-1961-059-8) (form tom's wikipedia link), both Takagi decomposition and your suggested form are quoted "classical" and "canonical". Is there specific technical meaning in calling these forms "canonical"?
Jan
3
revised Singular value decomposition of an arbitrary anti-symmetric ($A=-A^{T}$) complex matrix
corrected the statemnt on zero rank
Jan
3
comment Singular value decomposition of an arbitrary anti-symmetric ($A=-A^{T}$) complex matrix
@user1551 Thank you! What you suggest looks to be equivalent to Youla decomposition which I've just found.
Jan
3
revised Singular value decomposition of an arbitrary anti-symmetric ($A=-A^{T}$) complex matrix
added a link to the SVD of a symmetric matrix
Jan
3
asked Singular value decomposition of an arbitrary anti-symmetric ($A=-A^{T}$) complex matrix
Aug
20
awarded  Yearling
May
21
awarded  Custodian