Butzer, Paul L.; Stens, Rudolf L. A retrospective on research visits of Paul Butzer’s Aachen research group to Eastern Europe and Tenerife. (English) Zbl 1511.01024 Sampl. Theory Signal Process. Data Anal. 20, No. 2, Paper No. 17, 32 p. (2022). Reviewer: Robert W. van der Waall (Huizen) MSC: 01A70 PDFBibTeX XMLCite \textit{P. L. Butzer} and \textit{R. L. Stens}, Sampl. Theory Signal Process. Data Anal. 20, No. 2, Paper No. 17, 32 p. (2022; Zbl 1511.01024) Full Text: DOI
Butzer, Paul L.; Stens, Rudolf L. Exterior Dirichlet and Neumann problems and the linked ergodic inverse problems in the entire space. (English) Zbl 1489.35047 J. Fourier Anal. Appl. 28, No. 2, Paper No. 36, 46 p. (2022). MSC: 35J25 42B37 47D03 PDFBibTeX XMLCite \textit{P. L. Butzer} and \textit{R. L. Stens}, J. Fourier Anal. Appl. 28, No. 2, Paper No. 36, 46 p. (2022; Zbl 1489.35047) Full Text: DOI
Butzer, Paul L.; Stens, Rudolf L. A retrospective on research visits of Paul Butzer’s Aachen research group to North America and Western Europe. (English) Zbl 1444.41001 J. Approx. Theory 257, Article ID 105452, 29 p. (2020). MSC: 41-03 01A70 PDFBibTeX XMLCite \textit{P. L. Butzer} and \textit{R. L. Stens}, J. Approx. Theory 257, Article ID 105452, 29 p. (2020; Zbl 1444.41001) Full Text: DOI