Research Communication | Open Access
Volume 2021 | Communication ID 245
On the Ritt Condition on Locally Convex Vector Spaces
Abdellah Akrym, Abdeslam El Bakkali, Abdelkhalek Faouzi
Academic Editor: Youssef EL FOUTAYENI
Received
Accepted
Published
January 31, 2021
February 15, 2021
March 15, 2021

Abstract: During the last decades, there has been huge interest in the study of power boundedness under various resolvent conditions of operators acting on Banach spaces at first and lately, more generally, on locally convex spaces. In this communication, we show that the Ritt condition in the case of locally convex spaces can be related to the power boundedness of a universally bounded operator. We will characterize this condition by two geometric properties of the powers and we prove that the Ritt condition will be shown to be equivalent to the Tadmor condition. Also, an upper bound for the norm of ...