[petsc-users] having issues with nullspace

Jed Brown jed at jedbrown.org
Thu Mar 6 21:00:44 CST 2014


Mohammad Mirzadeh <mirzadeh at gmail.com> writes:

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

Yes, think about

  A x = b

and what it means to be consistent.  Alternatively, you could enforce
boundary conditions symmetrically.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 835 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20140306/cdd6ddab/attachment.pgp>


More information about the petsc-users mailing list