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

被引：0
作者：
Maria Stella Adamo
Camillo Trapani
机构：
[1] Università di Palermo,Dipartimento di Matematica e Informatica
来源：
Annali di Matematica Pura ed Applicata (1923 -) | 2019年 / 198卷
关键词：
Banach quasi *-algebras; Unbounded derivations; *-Automorphisms groups and their infinitesimal generators; Integrability of derivation; Primary 46L57; Secondary 46L08, 47L60;
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学科分类号：
摘要：
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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页码：1711 / 1729
页数：18
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