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Titlebook: Recent Advances in Operator Theory and Applications; Tsuyoshi Ando,Raúl E. Curto,Woo Young Lee Conference proceedings 2009 Birkhäuser Base

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Quadratically Hyponormal Recursively Generated Weighted Shifts,. be a weighted shift with weight sequence .. It is known that in the case of . = 1, positive quadratic hyponormality of . is equivalent to quadratic hyponormality. But it has not been known whether these two notions are equivalent for . ≥ 2. In this note, we obtain a useful characterization for pos
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Variants of Ando-Hiai Inequality,se of Kubo-Ando. In this context, the Furuta inequality is understood as the one-sided version (the case of . = 1): If . . . ≤ ., then . As a consequence, the Furuta inequality has an alternative simple proof. In addition, we point out that the obtained inequality is understood as the case . = 1 in
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The Finite Sections Approach to the Index Formula for Band-dominated Operators,dices of its limit operators. The proof makes thoroughly use of .-theory for .*-algebras (which, of course, appears as a natural approach to index problems). The purpose of this short note is to develop a completely different approach to the index formula for band-dominated operators which is exclus
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The Finite Sections Approach to the Index Formula for Band-dominated Operators,blems). The purpose of this short note is to develop a completely different approach to the index formula for band-dominated operators which is exclusively based on ideas and results from asymptotic numerical analysis.
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Joseph A. Ball,Quanlei Fang,Sanne ter Horst,Animikh Biswasrie, dem Arbeitskreis „Reduktion freiheitsentziehender Maßnahmen in der Pflege“ der Stadt Jena und Vorstand des Jenaer Demenz Informations- und Beratungsverein JeDI e.V..978-3-658-26483-3978-3-658-26484-0Series ISSN 2197-6708 Series E-ISSN 2197-6716
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