Berg, Lothar; Krüppel, Manfred Linear independence and sums of shifted eigenfunctions of two-scale difference equations. (English) Zbl 1052.39017 J. Difference Equ. Appl. 10, No. 3, 309-327 (2004). Reviewer: Changgui Zhang (Villeneuve d’Ascq) MSC: 39A13 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, J. Difference Equ. Appl. 10, No. 3, 309--327 (2004; Zbl 1052.39017)
Berg, Lothar; Krüppel, Manfred Recursions for the solution of an integral-functional equation. (English) Zbl 1097.45002 Rostocker Math. Kolloq. 58, 101-122 (2004). MSC: 45D05 39B22 26C05 05C90 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, Rostocker Math. Kolloq. 58, 101--122 (2003; Zbl 1097.45002)
Berg, Lothar; Krüppel, Manfred Eigenfunctions of two-scale difference equations with rational symbol. (English) Zbl 1061.39012 Result. Math. 44, No. 3-4, 226-241 (2003). Reviewer: Alberto Cabada (Santiago de Compostela) MSC: 39A13 46F10 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, Result. Math. 44, No. 3--4, 226--241 (2003; Zbl 1061.39012) Full Text: DOI
Berg, Lothar; Krüppel, Manfred On discrete solutions of two-scale difference equations. (English) Zbl 1033.39002 Rostocker Math. Kolloq. 56, 63-79 (2002). Reviewer: Fozi Dannan (Doha) MSC: 39A10 46F10 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, Rostocker Math. Kolloq. 56, 63--79 (2002; Zbl 1033.39002)
Berg, L.; Krüppel, M. Series expansions for the solutions of an integral-functional equation with a parameter. (English) Zbl 1032.45001 Result. Math. 41, No. 3-4, 213-228 (2002). Reviewer: Neville Ford (Chester) MSC: 45D05 39B22 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, Result. Math. 41, No. 3--4, 213--228 (2002; Zbl 1032.45001) Full Text: DOI
Berg, L.; Krüppel, M. Eigenfunctions of two-scale difference equations and Appell polynomials. (English) Zbl 0986.39002 Z. Anal. Anwend. 20, No. 2, 457-488 (2001). Reviewer: Alberto Cabada (Santiago de Compostela) MSC: 39A10 39A12 33C65 46F10 47A75 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, Z. Anal. Anwend. 20, No. 2, 457--488 (2001; Zbl 0986.39002) Full Text: DOI
Berg, L.; Krüppel, M. A simple system of discrete two-scale difference equations. (English) Zbl 0989.39002 Z. Anal. Anwend. 19, No. 4, 999-1016 (2000). Reviewer: B.M.Agrawal (Gwalior) MSC: 39A10 39A12 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, Z. Anal. Anwend. 19, No. 4, 999--1016 (2000; Zbl 0989.39002) Full Text: DOI EuDML
Berg, L.; Krüppel, M. De Rham’s singular function, two-scale difference equations and Appell polynomials. (English) Zbl 0954.39017 Result. Math. 38, No. 1-2, 18-47 (2000). Reviewer: János Aczél (Waterloo/Ontario) MSC: 39B22 26A16 26A30 33C65 42C40 39A10 45G10 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, Result. Math. 38, No. 1--2, 18--47 (2000; Zbl 0954.39017) Full Text: DOI
Berg, L.; Krüppel, M. De Rham’s singular function and related functions. (English) Zbl 0985.39020 Z. Anal. Anwend. 19, No. 1, 227-237 (2000). Reviewer: J.Schwaiger (Graz) MSC: 39B72 39B22 26A30 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, Z. Anal. Anwend. 19, No. 1, 227--237 (2000; Zbl 0985.39020) Full Text: DOI EuDML
Berg, L.; Krüppel, M. Cantor sets and integral-functional equations. (English) Zbl 0926.45002 Z. Anal. Anwend. 17, No. 4, 997-1020 (1998). Reviewer: O.Staffans (Åbo) MSC: 45D05 65R20 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, Z. Anal. Anwend. 17, No. 4, 997--1020 (1998; Zbl 0926.45002) Full Text: DOI
Berg, L.; Krüppel, M. On the solution of an integral-functional equation with a parameter. (English) Zbl 0897.45004 Z. Anal. Anwend. 17, No. 1, 159-181 (1998). Reviewer: O.Staffans (Åbo) MSC: 45D05 39B22 42A16 45C05 45L05 PDFBibTeX XMLCite \textit{L. Berg} and \textit{M. Krüppel}, Z. Anal. Anwend. 17, No. 1, 159--181 (1998; Zbl 0897.45004) Full Text: DOI