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Smooth solutions of a class of iterative functional equations
Imposing some conditions on derivatives of the known functions, using the Fiber Contraction Theorem we prove the existence of \(C^1\) solutions of a class of iterative functional equations which involves iterates of the unknown functions and a nonlinear term.
期刊介绍:
aequationes mathematicae is an international journal of pure and applied mathematics, which emphasizes functional equations, dynamical systems, iteration theory, combinatorics, and geometry. The journal publishes research papers, reports of meetings, and bibliographies. High quality survey articles are an especially welcome feature. In addition, summaries of recent developments and research in the field are published rapidly.