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Feb
28
comment Wave Equation with outgoing wave boundary conditions
The boundary conditions you are using, are called "Transparent boundary condition". In fact you'r equation is the tipical IVP wave equation. Thus I dont really know how to deduce those "boundary condition".
Dec
18
accepted is this intengral bounded?
Nov
14
asked divergence form of the determinant
Nov
10
accepted Inner products of weakly convergent sequences
Nov
10
comment Inner products of weakly convergent sequences
how can I see that if $\|u-u_k\|\to 0$ then $\left<u_{k}, v_{k}\right> \to \left<u, v\right>$ ?
Nov
10
asked Inner products of weakly convergent sequences
Nov
9
accepted Harmonic function product, Knowing that one is Harmonic implies something about the other?
Oct
22
answered Use the definition of derivative to prove $\lim_{x\to 0}\ln(x+1)/x =1$
Oct
21
revised Another theorem of Principal value
$\overline{\mathbb{H}}^+ = \{ z\in \mathbb{C} : \operatorname{Im} z \geqslant 0\}$ corection
Oct
21
suggested approved edit on Another theorem of Principal value
Oct
14
comment A meromorphic function is open?
can you explain a little bit more the case $1/f(1/z)$ ?
Oct
14
awarded  Teacher
Oct
14
answered The Residues of an even function or an odd function on $U$ subset open symmetric
Oct
7
accepted Essential singularity in sine function
Oct
7
comment Essential singularity in sine function
I have but it's to hard
Oct
7
comment Essential singularity in sine function
but non-existence is not enougth to say that is an essential singularity.
Oct
7
asked Essential singularity in sine function
Oct
6
asked finding the solution space of helmholtz equation with mixed boundary?
Oct
6
accepted weak solution of poisson equation
Sep
30
comment Representation integral for some branch of arcsin(w)?
I need to fix the branch were that make sense?