Thanks, Denis and Jean. Increasing the quadrature order did help me remove this error.
On Wednesday, September 20, 2017 at 12:21:44 AM UTC+2, Denis Davydov wrote: > > Jean-Paul is right. Most likely you don't adjust the quadrature order > which breaks LU factorization of the mass matrix, used by default for > Generalized Hermitian Eigenvalue Problem. Essentially your mass matrix is > not positive definite anymore. > > Regards, > Denis > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
