A posteriori L (L2)-error bounds for finite element approximations to the wave equation
A posteriori L (L2)-error bounds for finite element approximations to the wave equation
We address the error control of Galerkin discretization (in space) of linear second order hyperbolic problems.More specifically, we derive a posteriori error bounds in the L ∞ (L 2 )-norm for finite element methods for the linear wave equation, under minimal regularity assumptions.The theory is developed for both the space-discrete …