New examples of weakly compact approximation in Banach spaces.
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Saksman, Eero, Tylli, Hans-Olav (2008)
Annales Academiae Scientiarum Fennicae. Mathematica
Roman V. Bessonov, Janko Bračič, Michal Zajac (2011)
Studia Mathematica
We study operators whose commutant is reflexive but not hyperreflexive. We construct a C₀ contraction and a Jordan block operator associated with a Blaschke product B which have the above mentioned property. A sufficient condition for hyperreflexivity of is given. Some other results related to hyperreflexivity of spaces of operators that could be interesting in themselves are proved.
Jerry Johnson, John Wolfe (1979)
Studia Mathematica
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