# Extensions of Representable Positive Linear Functionals to Unitized Quasi *-Algebras: A New Method

Risultato della ricerca: Article

### Abstract

A topological approach for extending a representable linear functional $\omega$, defined on a topological quasi *-algebra without unit, to a representable linear functional defined on a quasi *-algebra with unit, is introduced. In particular, we suppose that $\omega$ is continuous and the positive sesquilinear form $\vom$, associated to $\omega$, is closable and prove that the extension $\overline{\vom}^e$ of the closure $\overline{\vom}$ is an i.p.s. form. By $\overline{\vom}^e$ we construct the desired extension.
Lingua originale English 997-1008 12 Mediterranean Journal of Mathematics 12 Published - 2015

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Linear Functionals
Linear Functional
Sesquilinear form
Algebra
Unit
Closure
Form

### All Science Journal Classification (ASJC) codes

• Mathematics(all)

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In: Mediterranean Journal of Mathematics, Vol. 12, 2015, pag. 997-1008.

Risultato della ricerca: Article

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