Interior a priori error estimates in Sobolev norms are derived from interior Ritz-Galerkin equations which are common to a class of methods used in approximating ...

Approximation theory and asymptotic methods form a foundational framework that bridges classical ideas with modern numerical analysis, enabling researchers to obtain practical, near‐optimal solutions ...

This is a preview. Log in through your library . Abstract In the Ritz-Galerkin method the linear subspace of the trial solution is extended to a closed subset. Some ...