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Mar
28
asked non-smooth minmal surfaces and differenteial equations
Mar
26
asked exercise on $ L(0,1) $ and functional analysis
Mar
23
asked laurent series of a function defined by an integral
Mar
16
asked Real roots plot of the modified bessel function
Mar
10
asked fractional derivaitve of logarithm function $x^ {a} log(x) $
Feb
26
answered Show that $f(z)=\sum_{n=-\infty}^\infty \frac{1}{(n-z)^2}$ converges uniformly on compact sets in $\Bbb C - \Bbb Z$.
Feb
19
asked minimal surface from a variational problem
Feb
18
asked A variational problem with a lagrangian , what is the lagrangian?
Feb
18
asked variational problem: obtain the lagrangian from the PDE equations of motion
Feb
13
answered Find solution for the following system: $x'=y^3-4x$ , $y'=y^3-y-3x$
Feb
12
asked second degree congruence solution $ f(x) \equiv 0 \ ( \text{mod} \ 2) $
Feb
9
asked delta function on a complex number
Feb
7
asked Sum of a power series with a parameter
Feb
5
asked Ramanujan resummation
Feb
2
asked proving that the series $ 1+2^{s}+3^{s}++ $ is divergent but borel summable
Feb
1
answered Why does zeta have infinitely many zeros in the critical strip?
Jan
26
answered Show that $|\,\ddot{\boldsymbol{r}}|$ is constant if $\ddot{\boldsymbol{r}}=\lambda\, \dot{\boldsymbol{r}}\times \boldsymbol{r}$
Jan
26
asked a question about a Green function but with $ \delta (\frac{x}{s}-1) $
Jan
22
answered Prove that solution to Cauchy problem is odd
Jan
18
asked Euler-Maclarurin summation formula and regularization