Hi, I am trying to solve an eigenproblem. I would like to apply boundary conditions by removing the rows and columns associated with these dofs (as opposed to retaining/zeroing them and setting the diagonal elements to unit values).
Is there a way for me to tell the matrix data structure which dofs to ignore during the matrix operations? Or should I create a separate matrix by extracting the unconstrained dofs from the global matrix? I would appreciate any inputs. Thanks, Manav
