Differentiable solutions for a class of functional equations
Volume 92 / 2007
Annales Polonici Mathematici 92 (2007), 225-241
MSC: 39B12, 47H10.
DOI: 10.4064/ap92-3-3
Abstract
We give a set of sufficient conditions for the existence of differentiable solutions for a functional equation involving a series of iterates, using a method different from that of Baker and Zhang [Ann. Polon. Math. 73 (2000)].