The Tricomi equation can be expressed in symmetric positive form. Admissible boundary conditions assure existence and uniqueness of solutions. In this paper it is shown what boundary conditions are ...
SIAM Journal on Numerical Analysis, Vol. 36, No. 3 (Mar. - May, 1999), pp. 935-952 (18 pages) A family of explicit space-time finite element methods for the initial boundary value problem for linear, ...