Model theory for hyponormal contractions (2000)

Author(s): Dritschel MA, McCullough S

    Abstract: Agler's abstract model theory is applied to the family of hyponormal contractions. A sufficient condition for an operator to be extremal in this family is given, and this is used to show that the boundary, or smallest model, for the family is the whole family.

      • Journal: Integral Equations and Operator Theory
      • Volume: 36
      • Issue: 2
      • Pages: 182-192
      • Publisher: Birkhaeuser Verlag AG
      • Publication type: Article
      • Bibliographic status: Published

      Dr Michael Dritschel
      Reader in Pure Mathematics