Über die Darstellung holomorpher Funktionen durch Weierstraß- und Weierstraß-Stieltjes-Integrale.
On Nonlinear Condensation Principles with Rates.
Sharp Estimates in Terms of Moduli of Smoothness for Compound Cubature Rules.
A General Approach to Counterexamples in Numerical Analysis.
On the comparison of error bounds for finite difference schemes.
Trigonometric Convolution Operators with Kernels having Alternating Signs and their Degree of Convergence.
On the comparison of trigonometric convolution operators with their discrete analogues for Riemann integrable functions.
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