2,884 reputation
1620
bio website
location Spain , Basque Country , Bilbao
age
visits member for 3 years, 3 months
seen Jan 2 at 11:03

i got a degree on Physics and have several ideas on my own , unfortunately i do not have a physics sponsor :) in order to get an investigation grant :)


Jun
8
reviewed Approve Field homomorphism into itself
Jun
7
accepted Asymptotic of a sum evaluation as $ x \to \infty $
Jun
6
comment Asymptotic of a sum evaluation as $ x \to \infty $
why not ?, what i have made wrong in my approximation
Jun
5
reviewed Approve How to find $x^2 - x$?
Jun
5
comment Solve the Sturm-Liouville problem $y'' + λy = 0$ given $y(0) = 0$, $y'(6) = 0$?
for the firste term the solution is $ y(X)=Asin( \sqrt{\lambda}x $ so $ B=0$ and $ y(0)=0 $ . The quantization condition comes from the secon equation $ y'(6)=0= \sqrt{\lambda}cos( \sqrt{\lambda} 6) $
Jun
5
asked Asymptotic of a sum evaluation as $ x \to \infty $
Jun
5
reviewed Approve Evaluate h(x) = x + 1/x
Jun
5
reviewed Approve Differentiability of a series
Jun
1
asked What hints had John Nash to prove Riemann Hypothesis ?¿??
Jun
1
asked integration of a multiple Laurent series
Jun
1
reviewed Approve How many eulerian circuits are in $K_{2,n}$ ?
Jun
1
asked numerical representation of functions by integrals
May
31
reviewed Approve schur index in GAP
May
30
answered $\psi(p_{n+1}) - \psi(p_n)$?
May
30
comment $\psi(p_{n+1}) - \psi(p_n)$?
with the prime number theorem on mind $ \Psi (x) \to 0 $ so for big primes the different will be about $ \p_{n+1}-p_{n} $ but again in prime number theorem $ p_{n} \to nlog(n) $ so we have that $ S(p_{n}) \to 1+log(n) $
May
30
reviewed Approve Newton's Interpolation Formula: Difference between the forward and the backward formula
May
29
accepted an implicit solution is valid to show that the solution exists??
May
29
reviewed Approve Subgroup Lattices and Dimension
May
29
reviewed Approve Is there a fast algorithm for computing the $(2^n)+1$ th last digit of $3^{2^n}$ in base $2$?
May
29
comment an implicit solution is valid to show that the solution exists??
wel if you lik put $ y^{-1}(x)=x(y)$ but i have always written this way with the minus 1