New article published in CMAME.
Link: https://authors.elsevier.com/c/1eks2AQEIzVOs
Abstract: Non-symmetric matrices may arise in the discretization of self-adjoint problems when a Petrov–Galerkin, collocation, or finite-volume method is employed. While these methods have been widely applied, in this paper it is shown that the use of these non-symmetric matrices is incompatable with the conservation of energy in elastodynamics.