Subnormality and cyclicity

• Autorzy: Franciszek Hugon Szafraniec
• Języki publikacji: EN

Abstrakty

EN

For an unbounded operator S the question whether its subnormality can be built up from that of every $S_f$, the restriction of S to a cyclic space generated by f in the domain of S, is analyzed. Though the question at large has been left open some partial results are presented and a possible way to prove it is suggested as well.

Kategorie tematyczne

• 47A56: Functions whose values are linear operators (operator and matrix valued functions, etc., including analytic and meromorphic ones)
• 47D03: Groups and semigroups of linear operators
• 47B20: Subnormal operators, hyponormal operators, etc.
• 47A20: Dilations, extensions, compressions

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Banach Center Publications
• Rocznik: 2005
• Tom: 67
• Numer: 1
• Strony: 349-356

Daty

wydano

2005

Twórcy

autor

Franciszek Hugon Szafraniec

• Instytut Matematyki, Uniwersytet Jagielloński, Reymonta 4, 30-059 Kraków, Poland

Identyfikatory

DOI

10.4064/bc67-0-27