Domination by Positive Disjointly Strictly Singular Operators

نویسندگان

  • JULIO FLORES
  • FRANCISCO L. HERNÁNDEZ
  • Joseph A. Ball
چکیده

We prove that each positive operator from a Banach lattice E to a Banach lattice F with a disjointly strictly singular majorant is itself disjointly strictly singular provided the norm on F is order continuous. We prove as well that if S : E → E is dominated by a disjointly strictly singular operator, then S2 is disjointly strictly singular.

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تاریخ انتشار 2001