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This article is cited in 2 scientific papers (total in 2 papers)
Derivations on ideals in commutative $AW^*$-algebras
G. B. Levitina, V. I. Chilin National University of Uzbekistan, Faculty of Mathematics and Mechanics, Tashkent, Uzbekistan
Abstract:
Let $\mathcal A$ be a commutative $AW^*$-algebra.We denote by $S(\mathcal A)$ the $*$-algebra of measurable operators that are affiliated with $\mathcal A$. For an ideal $\mathcal I$ in $\mathcal A$, let $s(\mathcal I)$ denote the support of $\mathcal I$. Let $\mathbb Y$ be a solid linear subspace in $S(\mathcal A)$. We find necessary and sufficient conditions for existence of nonzero band preserving derivations from $\mathcal I$ to $\mathbb Y$. We prove that no nonzero band preserving derivation from $\mathcal I$ to $\mathbb Y$ exists if either $\mathbb Y\subset\mathcal A$ or $\mathbb Y$ is a quasi-normed solid space. We also show that a nonzero band preserving derivation from $\mathcal I$ to $S(\mathcal A)$ exists if and only if the boolean algebra of projections in the $AW^*$-algebra $s(\mathcal I)\mathcal A$ is not $\sigma$-distributive.
Key words:
Boolean algebra, commutative $AW^*$-algebra, ideal, derivation.
Received: 04.06.2012
Citation:
G. B. Levitina, V. I. Chilin, “Derivations on ideals in commutative $AW^*$-algebras”, Mat. Tr., 16:1 (2013), 63–88; Siberian Adv. Math., 24:1 (2014), 26–42
Linking options:
https://www.mathnet.ru/eng/mt250 https://www.mathnet.ru/eng/mt/v16/i1/p63
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Abstract page: | 362 | Full-text PDF : | 98 | References: | 60 | First page: | 6 |
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