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Caballero, J.; Harjani, J.; López, B.; Sadarangani, K. Solvability of a recursive functional equation in the sequence Banach space \(l^2\). (English) Zbl 1142.39003 Extr. Math. 22, No. 2, 147-155 (2007). MSC: 39A10 47H30 45G10 46B45 PDFBibTeX XMLCite \textit{J. Caballero} et al., Extr. Math. 22, No. 2, 147--155 (2007; Zbl 1142.39003) Full Text: EuDML