Über die Ramanujan-Entwicklung multiplikativer Funktionen
Über ein Problem der Näherungsrechnung und die Makeham'schen Rentenwerte
Un procédé d'approximation d'une fonction convexe lipschitzienne et de ses singularités
Uniform approximation by incomplete polynomials.
Uniform approximation by polynomials on real non-degenerate Weil polyhedron.
Uniform approximation of continuous functions and -functions in nuclear spaces by entire functions
Uniform approximation of continuous functions on compact sets by biharmonic functions
We give a characterization of functions that are uniformly approximable on a compact subset of by biharmonic functions in neighborhoods of .
Universal approximation by hill functions
Universal approximation by systems of hill functions
Universal simultaneous approximations of the coefficient functionals
Universally optimal approximation of functionals
A universal optimal in order approximation of a general functional in the space of continuous periodic functions is constructed and its fundamental properties and some generalizations are investigated. As an application the approximation of singular integrals is considered and illustrated by numerical results.
Univerzální diferenciální rovnice (Věnováno památce Waltera Strodta)