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On the Adjoint and the Closure of the Sum of Two Unbounded Operators

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Publication:3095120
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DOI10.4153/CMB-2011-041-7zbMath1242.47005MaRDI QIDQ3095120

Mohammed Hichem Mortad

Publication date: 28 October 2011

Published in: Canadian Mathematical Bulletin (Search for Journal in Brave)


zbMATH Keywords

unbounded operatorsself-adjoint operatorsclosed operatorsclosure of operatorsHilbert and Banach adjointssum and products of operators


Mathematics Subject Classification ID

General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05)


Related Items (6)

On the closedness, the self-adjointness and the normality of the product of two unbounded operators ⋮ On the normality of the sum of two normal operators ⋮ Certain properties involving the unbounded operators \(p(T)\), \(TT^\ast\), and \(T^\ast T\); and some applications to powers and \textit{nth} roots of unbounded operators ⋮ Weighted join operators on directed trees ⋮ Unbounded products of operators and connections to Dirac-type operators ⋮ A criterion for the normality of unbounded operators and applications to self-adjointness






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