Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-20T06:32:39.486Z Has data issue: false hasContentIssue false

Completeness of the L1-space of closed vector measures

Published online by Cambridge University Press:  20 January 2009

Werner J. Ricker
Affiliation:
Fachbereich Mathematik, Universität des Saarlandes, D-6600 Saarbrücken, Federal Republic of Germany
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.

The notion of a closed vector measure m, due to I. Kluv´;nek, is by now well established. Its importance stems from the fact that if the locally convex space X in which m assumes its values is sequentially complete, then m is closed if and only if its L1-space is complete for the topology of uniform convergence of indefinite integrals. However, there are important examples of X-valued measures where X is not sequentially complete. Sufficient conditions guaranteeing the completeness of L1(m) for closed X-valued measures m are presented without the requirement that X be sequentially complete.

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 1990

References

REFERENCES

1.Brook, C. H. and Graves, W. H., Closed measures (Proc. Conf. on Integration, Topology and Geometry in Linear Spaces), Contemp. Math. 2 (1980), 145160.CrossRefGoogle Scholar
2.Dodds, P. G. and Ricker, W. J., Spectral measures and the Bade reflexivity theorem, J. Funct. Anal. 61 (1985), 136163.CrossRefGoogle Scholar
3.Dodds, P. G., Depagter, B. and Ricker, W. J., Reflexivity and order properties of scalar-type spectral operators in locally convex spaces. Trans. Amer. Math. Soc. 293 (1986). 355380.CrossRefGoogle Scholar
4.Dodds, P. G. and Depagter, B., Algebras of unbounded scalar-type spectral operators, Pacific J. Math. 130(1987), 4174.CrossRefGoogle Scholar
5.Dunford, N. and Schwartz, J. T., Linear Operators III: Spectral Operators (Wiley-Interscience, New York, 1971).Google Scholar
6.Gillespie, T. A., Boolean algebras of projections and reflexive algebras of operators, Proc. London Math. Soc. 37 (1978), 5674.CrossRefGoogle Scholar
7.Kluvánek, I., The range of a vector-valued measure, Math. Systems Theory 7 (1973), 4454.CrossRefGoogle Scholar
8.Kluvánek, I. and Knowles, G., Vector Measures and Control Systems (North-Holland Math. Stud. 20, Amsterdam, 1976).Google Scholar
9.Orhon, M., Boolean algebras of commuting projections, Math. Z. 183 (1983), 531537.CrossRefGoogle Scholar
10.Ricker, W. J., On Boolean algebras of projections and scalar-type spectral operators, Proc. Amer. Math. Soc. 87 (1983), 7377.CrossRefGoogle Scholar
11.Ricker, W. J., Criteria for closedness of vector measures, Proc. Amer. Math. Soc. 91 (1984), 7580.CrossRefGoogle Scholar
12.Ricker, W. J., Spectral measures, boundedly σ-complete Boolean algebras and applications to operator theory, Trans. Amer. Math. Soc. 304 (1987), 819838.Google Scholar
13.Schaefer, H. H., Banach Lattices and Positive Operators (Springer, Berlin, 1974).CrossRefGoogle Scholar