Richter, Christian Linear combinations of partitions of unity with restricted supports. (English) Zbl 1013.54008 Stud. Math. 153, No. 1, 1-11 (2002). Reviewer: H.Brandenburg (Berlin) MSC: 54D15 49J99 54C65 52B11 41A30 PDFBibTeX XMLCite \textit{C. Richter}, Stud. Math. 153, No. 1, 1--11 (2002; Zbl 1013.54008) Full Text: DOI
Richter, Christian \(n\)-term approximation by controllable step functions. (English) Zbl 1006.41016 Math. Nachr. 239-240, 177-197 (2002). Reviewer: Wolfgang W.Breckner (Cluj-Napoca) MSC: 41A46 41A30 26A15 26A30 PDFBibTeX XMLCite \textit{C. Richter}, Math. Nachr. 239--240, 177--197 (2002; Zbl 1006.41016) Full Text: DOI
Richter, Christian Entropy, approximation quantities and the asymptotics of the modulus of continuity. (English) Zbl 0969.41011 Math. Nachr. 198, 179-188 (1999). Reviewer: K.Najzar (Praha) MSC: 41A30 41A60 PDFBibTeX XMLCite \textit{C. Richter}, Math. Nachr. 198, 179--188 (1999; Zbl 0969.41011) Full Text: DOI
Richter, Christian; Stephani, Irmtraud Entropy and the approximation of bounded functions and operators. (English) Zbl 0865.41024 Arch. Math. 67, No. 6, 478-492 (1996). Reviewer: I.Stephani, C.Richter (Jena) MSC: 41A30 26A15 41A46 PDFBibTeX XMLCite \textit{C. Richter} and \textit{I. Stephani}, Arch. Math. 67, No. 6, 478--492 (1996; Zbl 0865.41024) Full Text: DOI