The symmetry of the coefficient matrices K and T depends on the original differential equation as well as weak form used to develop the finite element equations. Even when K is symmetric, T may not be...

The symmetry of the coefficient matrices K and T depends on the original differential equation as well as weak form used to develop the finite element equations. Even when K is symmetric, T may not be symmetric, and vice versa; the symmetry of T depends on K as well as on the nature of nonlinearity in the governing differential equations.