Mean square approximation by optimal periodic interpolation Franz-Jürgen Delvos — 1995 Applications of Mathematics Following the research of Babuška and Práger, the author studies the approximation power of periodic interpolation in the mean square norm thus extending his own former results.
Convergence of approximate splines via pseudo-inverses Franz-Jürgen Delvos; Walter Schempp — 1987 ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique
On the Variational Characterization of Bivariate Interpolation Methods. Franz-Jürgen Delvos; H.-W. Kösters — 1975 Mathematische Zeitschrift
Boolean algebra and multivariate interpolation Günter Baszeński; Franz-Jürgen Delvos — 1989 Banach Center Publications
Uniform approximation by minimum norm interpolation. Delvos, Franz-Jürgen — 2002 ETNA. Electronic Transactions on Numerical Analysis [electronic only]