On Fri, Sep 7, 2018 at 12:16 PM Miguel Angel Salazar de Troya <
salazardetr...@gmail.com> wrote:
> Hi,
>
> I want to solve a simple Poisson equation with a diffusion coefficient, a
> simple reaction term and apply Adaptive Mesh Ref (AMR). The problem is that
> if the diffusion coefficient is much
Hi,
I want to solve a simple Poisson equation with a diffusion coefficient, a
simple reaction term and apply Adaptive Mesh Ref (AMR). The problem is that
if the diffusion coefficient is much smaller than the mesh resolution (as
it can happen before applying AMR), I obtain over and undershoots of
On Fri, Sep 7, 2018 at 3:26 AM Nikhil Vaidya
wrote:
> I am trying to make some manipulations to sparse matrices. I have a
> function that sets some pre-determined entries in a sparse matrix to a
> pre-determined value. I have multiple sparse matrices to which I apply this
> procedure. None of the
I am trying to make some manipulations to sparse matrices. I have a
function that sets some pre-determined entries in a sparse matrix to a
pre-determined value. I have multiple sparse matrices to which I apply this
procedure. None of the said sparse matrices contain non-zero elements at
(0,0) befor
