The Trotter-Kato theorem and approximation of PDEs

Abstract
We present formulations of the Trotter-Kato theorem for approximation of linear C 0 {}_0 -semigroups which provide very useful framework when convergence of numerical approximations to solutions of PDEs are studied. Applicability of our results is demonstrated using a first order hyperbolic equation, a wave equation and Stokes’ equation as illustrative examples.