A note on dominant contractions of Jordan algebras

We consider two positive contractions T, S : L1(A, τ) −→ L1(A, τ) such that T ≤ S, here (A, τ) is a semi-finite JBW-algebra. If there is an n0 ∈ N such that ||S^{n_0} − T^{n_0}|| < 1, we prove that ||S^n − T^n|| < 1 holds for every n ≥ n_0.

Bibliographic Details
Main Authors: Mukhamedov, Farrukh, Temir, Seyit, Akin, Hasan
Format: Article
Language:English
Published: The Scientific and Technological Research Council of Turkey 2010
Subjects:
Online Access:http://irep.iium.edu.my/1594/
http://irep.iium.edu.my/1594/
http://irep.iium.edu.my/1594/
http://irep.iium.edu.my/1594/1/mfstha-tjm%282010%29.pdf
Description
Summary:We consider two positive contractions T, S : L1(A, τ) −→ L1(A, τ) such that T ≤ S, here (A, τ) is a semi-finite JBW-algebra. If there is an n0 ∈ N such that ||S^{n_0} − T^{n_0}|| < 1, we prove that ||S^n − T^n|| < 1 holds for every n ≥ n_0.