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arXiv · 1807.11525

Unbounded derivations and *-automorphisms groups of Banach quasi *-algebras

Maria Stella Adamo·Camillo Trapani
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Abstract

This paper is devoted to the study of unbounded derivations on Banach quasi *-algebras with a particular emphasis to the case when they are infinitesimal generators of one parameter automorphisms groups. Both of them, derivations and automorphisms are considered in a weak sense; i.e., with the use of a certain families of bounded sesquilinear forms. Conditions for a weak *-derivation to be the generator of a *-automorphisms group are given.

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Maria Stella Adamo, Camillo Trapani. 2018-07-30. Unbounded derivations and *-automorphisms groups of Banach quasi *-algebras. https://arxiv.org/abs/1807.11525

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