Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-19T06:46:03.607Z Has data issue: false hasContentIssue false

Boolean algebras of projections in (DF)-and (LF)-spaces

Published online by Cambridge University Press:  17 April 2009

J. Bonet
Affiliation:
Dpto. Matematica Aplicada, Universidad Politecnica de Valencia, E-46071 Valencia, Spain
W. J. Ricker
Affiliation:
Math.-Geogr. Fakultät, Katholische Universität Eichstätt-Ingolstadt, D-85072 Eichstätt, 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.

Conditions are presented which ensure that an abstractly σ-complete Boolean algebra of projections on a (DF)-space or on an (LF)-space is necessarily equicontinuous and/or the range of a spectral measure. This is an extension, to a large and important class of locally convex spaces, of similar and well known results due to W. Bade (respectively, B. Walsh) in the setting of normed (respectively metrisable) spaces.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 2003

References

[1]Bade, W.G., ‘On Boolean algebras of projections and algebras of operators’, Trans. Amer. Math. Soc. 80 (1955), 345360.CrossRefGoogle Scholar
[2]Bierstedt, K.D., ‘An introduction to locally convex inductive limits’, in Functional analysis and its applications, (Hogbe-Nlend, H., Editor) (World Scientific, Singapore, 1988), pp. 35133.Google Scholar
[3]Dodds, P.G. and Ricker, W.J., ‘Spectral measures and the Bade reflexivity theorem’, J. Funct. Anal. 61 (1985), 136163.CrossRefGoogle Scholar
[4]Dodds, P.G., de Pagter, B. and Ricker, W.J., ‘Reflexivity and order properties of scalar-type spectral operators in locally covex spaces’, Trans. Amer. Math. Soc. 293 (1986), 355380.CrossRefGoogle Scholar
[5]Dodds, P.G. and de Pagter, B., ‘Algebras of unbounded scalar-type spectral operators’, Pacific J. Math. 130 (1987), 4174.CrossRefGoogle Scholar
[6]Dunford, N. and Schwartz, J.T., Linear operators III: spectral operators (Wiley-Interscience, NewYork, 1971).Google Scholar
[7]Jarchow, H., Locally convex spaces (B.G. Teubner, Stuttgart, 1981).Google Scholar
[8]Köthe, G., Topological vector spaces I, (2nd Edition) (Springer Verlag, Berlin, Heidelberg, New York, 1983).Google Scholar
[9]Köthe, G., Topological vector spaces II (Springer Verlag, Berlin, Heidelberg, New York, 1979).Google Scholar
[10]Okada, S., ‘Spectra of scalar-type sprectral operators and Schauder decompositions’, Math. Nachr. 139 (1988), 167174.Google Scholar
[11]Okada, S. and Ricker, W.J., ‘Spectral measures which fail to be equicontinuous’, Period. Math. Hungar. 28 (1994), 5561.Google Scholar
[12]Okada, S. and Ricker, W.J., ‘Representation of complete Boolean algebras of projections as ranges of spectral measures’, Acta Sci. Math. (Szeged) 63 (1997), 209227. See also Errata - Acta Sci. Math. (Szeged) 63 (1997), 689–693.Google Scholar
[13]Carreras, P. Pérez and Bonet, J., Barrelled locally convex spaces, North-Holland Math. Studies No. 131 (North-Holland, Amsterdam, 1987).Google Scholar
[14]Ricker, W.J., ‘Boolean algebras of projections and spectral measures in dual spaces’, in Linear operators in function spaces (Timişoara, 1988), Operator Theory Adv. Appl. 43 (Birkhäuser, Basel, 1990), pp. 289300.Google Scholar
[15]Ricker, W.J., Operator algebras generated by commuting projections: A vector measure approach, Lecture Notes in Math. 1711 (Springer-Verlag, Berlin, Heidelberg, 1999).CrossRefGoogle Scholar
[16]Ricker, W.J., ‘Resolutions of the identity in Fréchet spaces’, Integral Equations Operator Theory 41 (2001), 6373.CrossRefGoogle Scholar
[17]Ricker, W.J. and Schaefer, H.H., ‘The uniformly closed algebra generated by a complete Boolean algebra of projections’, Math. Z. 201 (1989), 429439.CrossRefGoogle Scholar
[18]Schaefer, H.H., Topological vector spaces, (4th Edition) (Springer-Verlag, Berlin, Heidelberg, New York, 1980).Google Scholar
[19]Walsh, B., ‘Structure of spectral measures on locally convex spaces’, Trans. Amer. Math. Soc. 120 (1965), 295326.CrossRefGoogle Scholar