Adding a dof not associated with a finite element space

[James MBewu]

Hi all,

I was wondering if it was possible to add a degree of freedom not associated with the finite element space to a dof handler. For example if I had a finite element system with 10 dofs and then wanted to add another equation (or two or three) for a scalar quantity that depends of the finite element values (and visa versa) leaving me with a (10 + 1) x (10 + 1) block system.

Any help would be much appreciated,

Thanks,

James

[Guido Kanschat]

Dear James,

This functionality used to be implemented in part looking ago, but we abandoned it a while ago.

A way you can impediment this is, that you generate a linear system worth a block vector, where one block is your usual finite element vector and another only had a single entry.

I hope this helps.

Best, Guido