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

Camillo Trapani, Maria Stella Adamo

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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.
Lingua originaleEnglish
pagine (da-a)1711-1729
Numero di pagine19
RivistaAnnali di Matematica Pura ed Applicata
Volume198
Stato di pubblicazionePublished - 2019

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All Science Journal Classification (ASJC) codes

  • Applied Mathematics

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