Optimal integration methods for multivariate functions from tensor products of reproducing kernel Hilbert spaces are constructed, analyzed and implemented. Besides optimal weights for random point sets, sparse tensor products of optimal univariate quadrature rules are employed.
As an application of the developed algorithms, this thesis deals with model problems from uncertainty quantification of parametric differential equations. Moreover, discrete choice models from econometrics are considered, since here multivariate integrals often play an important role as well.
Jens Oettershagen
Hilbert spaces multivariate functions optimal integration methods