8,743 reputation
23385
bio website eqnets.com
location Inside the Beltway
age
visits member for 5 years, 10 months
seen 7 hours ago

My mathematically-oriented work generally explores discrete geometric and probabilistic themes in physics, computation, and communication. Jack of most trades, master of none.

I can be reached at s.huntsman.1#alumni#nyu#edu (make the obvious substitutions for #).


Aug
31
comment Research situation in the field of Information Geometry
I would think it's natural to have a parameter space given by a Lie group, as in, e.g. mathoverflow.net/questions/14729
Aug
28
awarded  Necromancer
Aug
27
comment Listing all Lattice Points in a Box
Take suitable rational approximations and use BKZ (or LLL), then generate points and test them until you are guaranteed to be outside the box.
Aug
25
comment inequality with exponents
What is $\delta(v)$? Is it the set of vertices adjacent to $v$?
Aug
23
comment How should a mathematician approach the physics literature concerning percolation?
@AlexandreEremenko--I spent a lot of time with physics and physicists. So I am willing to deal with their way of reasoning. (I wish that was a two way street!)
Aug
22
comment How should a mathematician approach the physics literature concerning percolation?
Reading Cardy is the best piece of advice here. He also has a book on renormalization (amazon.com/…) that touches briefly on percolation.
Aug
19
comment Why does $d^n \exp(-x-x^{-1})/(dx)^n$ only have $n$ positive real zeroes?
Perhaps this can be brute forced with Faà di Bruno...
Aug
5
comment Probability of substring given string production probabilities
en.wikipedia.org/wiki/Inside%E2%80%93outside_algorithm
Jul
29
awarded  Nice Answer
Jul
27
awarded  Nice Answer
Jul
25
answered Computer calculations in a paper
Jul
23
comment Complexity of sparse matrix-vector multiplication?
persweb.wabash.edu/facstaff/turnerw/Presentations/rhit-2003.pdf
Jun
22
comment Stationary distribution for time-inhomogeneous Markov process
You might also find the multiplicative ergodic theorem helpful.
Jun
22
comment Stationary distribution for time-inhomogeneous Markov process
Consider a time-inhomogeneous Markov process $X_t$ on a finite state space. Let $Q(t)$ denote the generator, and let $P(s,t)$ denote the corresponding transition kernel, i.e. $P(s,t) = U^{-1}(s)U(t)$, where the Markov propagator is \begin{equation} U(t) := \mathcal{TO}^* \exp \int_0^t Q(s) \ ds, \end{equation} and $\mathcal{TO}^*$ indicates the formal adjoint or reverse time-ordering operator. Now an initial distribution $\pi(0)$ is propagated as $\pi(t) = \pi(0)U(t)$. (See, e.g., Kleinrock, L. Queueing Systems, vol. 1. Wiley (1975).)
Jun
18
comment Determinant Evaluation
Have you looked at Krattenthaler's papers on determinants?
Jun
9
answered A $d$-form on ${\mathbb R}^n$ that vanishes on $\binom{d+n-1}{n-1}$ general points, vanishes identically
May
27
awarded  pr.probability
May
19
comment Smooth bivariate functions identifiable under permutations
For $f$ symmetric and otherwise nice you may want to consider it as a graphon, cf. people.math.osu.edu/glasscock.4/graphons.pdf
May
12
comment Regular epimorphisms in the category of simple undirected graphs
@DominicvanderZypen -- It doesn't answer the question: it merely reinforces Todd's comment and gives context along those lines.
May
12
comment Regular epimorphisms in the category of simple undirected graphs
combinatorics.org/ojs/index.php/eljc/article/view/v15i1a1