On Invariant Subspaces of Weakly Compact-Friendly Operators

  title={On Invariant Subspaces of Weakly Compact-Friendly Operators},
  author={{\"O}mer G{\"o}k},
We prove that if a non-zero weakly compact-friendly operator B on a Banach lattice with topologically full center is locally quasi-nilpotent, then the super right-commutant [B〉 of B has a non-trivial closed invariant ideal. An example of a weakly compact-friendly operator which is not compact-friendly is also provided. 

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