[petsc-users] having issues with nullspace

Mohammad Mirzadeh mirzadeh at gmail.com
Thu Mar 6 20:53:23 CST 2014


I am confused -- are you saying that I need to project the left null space
out of the rhs?


On Thu, Mar 6, 2014 at 4:10 PM, Jed Brown <jed at jedbrown.org> wrote:

> Mohammad Mirzadeh <mirzadeh at gmail.com> writes:
>
> > hummm just tried it in Matlab and you are correct -- they are different.
> > What does this mean for my system? Also what is the correct approach
> here?
>
> It means you projected the wrong null space out of your right hand side.
>
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