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  • Operator ranges and spaceability 

    TIMONEY, RICHARD; KITSON, DEREK (Elsevier, 2011)
    Recent contributions on spaceability have overlooked the applicability of results on operator range subspaces of Banach spaces or Frechet spaces. Here we consider general results on spaceability of the complement of an ...
  • Weyl's theorem and tensor products: a counterexample. 

    KITSON, DEREK (Elsevier, 2011)
    Approximately fifty percent of Weyl's theorem fails to transfer from Hilbert space operators to their tensor product. As a biproduct we find that the product of circles in the complex plane is a limacon.