Work

Unbounded quasinormal operators revisited

Year: 2013

Type: preprint

Abstract: Various characterizations of unbounded closed densely defined operators commuting with the spectral measures of their moduli are established.In particular, Kaufman's definition of an unbounded quasinormal operator is shown to coincide with that given by the third-named author and Szafraniec. Examples demonstrating the sharpness of results are constructed.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.1310.3144

Authors: Jablonski, Zenon Jan, Jung, Il Bong, Stochel, Jan

Institutions: Jagiellonian University, Kyungpook National University

Language: English

Topic: Holomorphic and Operator Theory

Subfield: Applied Mathematics

Field: Mathematics

Domain: Physical Sciences

Open Access status: green

Funders: National Research Foundation, Kyungpook National University, Ministry of Science, ICT and Future Planning, National Research Foundation of Korea

Awards: G3985229134, G6931550529

OpenAlex ID: W2953071756

Cites: 15

Cited by: 2

Related to: 20