Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-10T12:12:35.890Z Has data issue: false hasContentIssue false

A Joint spectral theorem for unbounded normal opertors

Published online by Cambridge University Press:  09 April 2009

A. B. Patel
Affiliation:
Department of Mathematics Sardar Patel UniversityVallabh Vidyanagar-388120, India
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A joint spectral theorem for an n-tuple of doubly commuting unbounded normal operators in a Hilbert space is proved by using the techniques of GB*-algebras.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1983

References

[1]Allan, G. R., ‘On class of locally convex algebras’, Proc. London Math. Soc. (3) 17 (1967), 91114.CrossRefGoogle Scholar
[2]Bhatt, S. J., ‘A note on generalized B*-algebras’, J. Indian Math. Soc., to appear.Google Scholar
[3]Dieudonné, J., Treatise on analysis Vol II (Academic Press, 1970).Google Scholar
[4]Dixon, P. G., ‘Generalized B*-algebras’, Proc. London Math Soc. (3) 21 (1970), 693715.CrossRefGoogle Scholar
[5]Dixon, P. G., ‘Unbounded operator algebras’, Proc. London Math. Soc. 23 (1971), 53–6.CrossRefGoogle Scholar
[6]Fuglede, B., ‘A commuting theorem for normal operators’, Proc. Nat. Acad. Sci. U. S. A. 36 (1950), 3540.CrossRefGoogle Scholar
[7]Harte, R., ‘The spectral mapping theorem in several variables’. Bull. Amer. Math. Soc. 78 (5) (1972), 871875.CrossRefGoogle Scholar
[8]Hasting, W. W., ‘Commuting subnormal operators simultancously quasisimilar to unilateral shifts’, Illinois J. Math. 22 (3) (1978), 505519.Google Scholar
[9]Hewitt, E. and Stromberg, K., Real and abstract analysis (Springer-Verlag, Berlin, Heidelberg, New York, 1969).Google Scholar
[10]Rudin, W., Functional analysis (McGraw-Hill, 1970).Google Scholar
[11]Segal, I. E., ‘A noncommutative extension of abstract integration’. Ann. Math. 57 (1959), 401457.CrossRefGoogle Scholar
[12]Slodkowski, Z. and Zelazko, W., ‘On joint spectra of commuting families of operators’, Studia Math. 50 (1974), 127148.Google Scholar
[13]Yeadon, F. J., ‘Convergence of measurable operators’, Proc. Cambridge Philos. Soc. 74 (1973), 257268.CrossRefGoogle Scholar