Iteration groups, commuting functions and simultaneous systems of linear functional equations

Let \(( f^t )_{t \in \mathbb{R}}\) be a measurable iteration group on an open interval \(I\). Under some conditions, we prove that the inequalies \(g\circ f^a \leq f^a \circ g\) and \(g\circ f^b \leq f^b\circ g\) for some \(a,b \in \mathbb{R}\) imply that \(g\) must belong to the iteration group. So...

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Bibliographic Details
Main Author: Janusz Matkowski
Format: Article
Language:English
Published: AGH Univeristy of Science and Technology Press 2008-01-01
Series:Opuscula Mathematica
Subjects:
Online Access:http://www.opuscula.agh.edu.pl/vol28/4/art/opuscula_math_2839.pdf