Approximation of Parametric Derivatives by the Empirical Interpolation Method
We introduce a general a priori convergence result for the approximation of parametric derivatives of parametrized functions. We consider the best approximations to parametric derivatives in a sequence of approximation spaces generated by a general approximation scheme, and we show that these approximations are convergent provided that the best approximation to the function itself is convergent. We also provide estimates for the convergence rates. We present numerical results with spaces generated by a particular approximation schemethe Empirical Interpolation Methodto confirm the validity of the general theory.
parametric derivatives empirical interpolation method a priori convergence function approximation sensitivity derivatives g5g99 65d05 41a05 41a25