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A quasinilpotent operator with reflexive commutant

M. Zając — 1996

Studia Mathematica

An example of a nonzero quasinilpotent operator with reflexive commutant is presented.

A quasi-nilpotent operator with reflexive commutant, II

V. Müller; M. Zając — 1999

Studia Mathematica

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.

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