On operators close to isometries

• Autorzy: Sameer Chavan
• Języki publikacji: EN

Abstrakty

EN

We introduce and discuss a class of operators, to be referred to as operators close to isometries. The Bergman-type operators, 2-hyperexpansions, expansive p-isometries, and certain alternating hyperexpansions are main examples of such operators. We establish a few decomposition theorems for operators close to isometries. Applications are given to the theory of p-isometries and of hyperexpansive operators.

Kategorie tematyczne

• 47A16: Cyclic vectors, hypercyclic and chaotic operators
• 47B20: Subnormal operators, hyponormal operators, etc.

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Studia Mathematica
• Rocznik: 2008
• Tom: 186
• Numer: 3
• Strony: 275-293

Daty

wydano

2008

Twórcy

autor

Sameer Chavan

• Indian Institute of Science, Education & Research, Pune, Pune 411008, India

Identyfikatory

DOI

10.4064/sm186-3-6