On quasipositive elements in ordered Banach algebras
Volume 129 / 1998
Studia Mathematica 129 (1998), 59-65
DOI: 10.4064/sm-129-1-59-65
Abstract
Let a real Banach algebra A with unit be ordered by an algebra cone K. We study the elements a ∈ A with exp(ta) ∈ K, t≥ 0.
