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Publication:3007480
zbMath1216.47031MaRDI QIDQ3007480
Publication date: 16 June 2011
Full work available at URL: http://www.m-hikari.com/imf-2010/45-48-2010/index.html
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The single equality \(A^{\ast n} A^n = (A^\ast A)^n\) does not imply the quasinormality of weighted shifts on rootless directed trees ⋮ On \(n\)th roots of bounded and unbounded quasinormal operators ⋮ Unnamed Item ⋮ Unbounded quasinormal operators revisited ⋮ Subnormal \(n\)th roots of quasinormal operators are quasinormal ⋮ Reduced commutativity of moduli of operators
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