A quasi-nilpotent operator with reflexive commutant, II

ArticleOriginal scientific text

Title

Authors ¹, ²

Institute of Mathematics, Czech Academy of Sciences, Žitná 25, 115 67 Praha 1, Czech Republic
epartment of Mathematics, Faculty of Electrical Engineering, Slovak University of Technology, Ilkovičova 3, 812 19 Bratislava, Slovak Republic

A new example of a non-zero quasi-nilpotent operator T with reflexive commutant is presented. The norms

| T^{n} |

converge to zero arbitrarily fast.

quasinilpotent operator, commutant, reflexivity

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