title: A second order characteristic finite element scheme for convection-diffusion problems
abstract: A new characteristic finite element scheme is presented for convection-diffusion problems. It is of second order accuracy in time increment, symmetric, and unconditionally stable. Optimal error estimates are proved in the framework of L/sup 2/-theory. Numerical results are presented for two examples, which show the advantage of the scheme
keyphrases: second order characteristic finite element scheme convection-diffusion problems second order accuracy optimal error estimates L/sup 2/ -theory