Summary
Given a setD ⊂ (0, ∞), positive numbersa 1, ⋯,a k , and positive integersn 1, ⋯,n k all functionsf: D → D satisfying the iterative equation
are determined.
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Jarczyk, W. On an equation of linear iteration. Aeq. Math. 51, 303–310 (1996). https://doi.org/10.1007/BF01833285
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DOI: https://doi.org/10.1007/BF01833285