82 reputation
4
bio website
location
age
visits member for 2 years, 6 months
seen Jan 25 '13 at 10:50

Jul
2
awarded  Curious
Jan
25
accepted positive solution of a system of linear equations
Jan
24
asked positive solution of a system of linear equations
Oct
19
comment minimal polynomial of power of algebraic number
thanks. Somehow this question can be formulated as given $\alpha$, how to compute (symbolically) $\alpha^m$. I guess there must be some algorithm to do so.
Oct
19
asked minimal polynomial of power of algebraic number
Oct
5
awarded  Scholar
Oct
5
accepted Is this random walk well studied?
Oct
5
accepted Convex combination
Oct
4
awarded  Supporter
Oct
4
asked Convex combination
Sep
14
asked bound the distance of two roots of multivariate polynomial systems
Sep
11
comment zeros of linear recurence sequences
thanks. I mean given a linear recurrence relation, e.g., $a_{n+m}= \sum_{i=1}^{m-1} c_ia_{n+i}$, and $c_i$ are all integers, and $a_1, \dots, a_{m-1}$ are given integers.
Sep
11
asked zeros of linear recurence sequences
May
30
comment local variance of Markov decision processes
I saw once, but I simply forgot it; this is why I asked.
May
30
asked local variance of Markov decision processes
Apr
16
awarded  Student
Apr
16
asked Is this random walk well studied?
Apr
16
comment a multivariate quadratic function
Thanks. A might stupid question, I can see that $\nabla f(x) = 2Mx +L$, but how do you derive this?
Apr
16
asked convex set, convex function