<p>We study norm completeness and the domination problem for KB operators, and show that compact KB operators are not necessarily stable under rank one perturbations. It is proved that an order continuous Banach lattice is a KB-space if and only if every positive compact operator on it is KB. Conditions on quasi-KB operators to be KB are given.</p>

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On compact KB operators in Banach lattices

  • Eduard Emelyanov

摘要

We study norm completeness and the domination problem for KB operators, and show that compact KB operators are not necessarily stable under rank one perturbations. It is proved that an order continuous Banach lattice is a KB-space if and only if every positive compact operator on it is KB. Conditions on quasi-KB operators to be KB are given.