1,225 reputation
1616
bio website
location Los Angeles, CA
age 27
visits member for 5 years
seen 10 hours ago

Graduate student at USC


Nov
18
awarded  Yearling
Dec
8
awarded  Nice Answer
Nov
18
awarded  Yearling
Oct
23
comment Quantitative lower bounds related to Zhang's theorem on bounded gaps
Does Zhang's result have any useful implications for previous polymath project, "Deterministic way to find primes"?
Oct
5
awarded  Caucus
Jun
25
awarded  Citizen Patrol
Jun
3
comment Tightening Zhang's bound
I have an impression that this topic is more suitable for Polymath project: polymathprojects.org
Nov
18
awarded  Yearling
Nov
15
awarded  Popular Question
Oct
3
awarded  Nice Question
Nov
19
awarded  Yearling
Jan
18
revised Conjecture on signed sum of integer fractions x/y from 1..N?
added 2 characters in body
Jan
18
comment Conjecture on signed sum of integer fractions x/y from 1..N?
Can you re-edit equations with LaTeX?
Jan
12
comment How to estimate derivatives of multivariate polynomial near a manifold
May be this question is somehow related: mathoverflow.net/questions/12298/…
Nov
25
comment Sequences of Coefficients in $a p^i + b q^j = 1$
For every (i,j) pair there a lot of pairs (a,b) satisfacting this equation, so are there any other restrictions? Also, how explicit formula for them should be? Is something like $a_{ii}=p^{-i}\mod q^i$ acceptable?
Nov
22
comment Nontrivial question about fibonacci numbers?
"Every sufficiently high (= high enough for the right hand sides to make sense)" - is this remark necessary? Because Fibonacci numbers could be defined for negative $n$.
Nov
19
awarded  Yearling
Oct
11
comment Number of Fibonacci numbers up to x
Very closely related problem - mathoverflow.net/questions/39124/fibonacci-sequence-inversion
Oct
4
comment Formula for n-th iteration of dx/dt=B(x)
Is your expression for x(4) right? I re-checked my calculations, and the last coefficirnt isn't 7, it's 1.
Oct
4
comment Formula for n-th iteration of dx/dt=B(x)
Hm, incidentally I made such calculations when prepared my thesis. I remember that the coefficients were somehow related to the Eulerian numbers. Unfortunately, I didn't find closed expressions.