Available in electronic format
Available in print format
Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826 (e) ISSN 0002-9939 (p)
     

Hyperinvariant subspaces of operators with non-vanishing orbits

Author(s): László Kérchy
Journal: Proc. Amer. Math. Soc. 127 (1999), 1363-1370.
MSC (1991): Primary 47A15, 47A60
Posted: January 28, 1999
Retrieve article in: PDF
This article is available free of charge

Abstract | References | Similar articles | Additional information

Abstract: It is shown that if the Banach space operator $T$ has regular norm-sequence, its vector orbits are asymptotically non-vanishing and there exists a complete vector orbit satisfying the growth condition of non-quasianalycity, then $T$ has infinitely many disjoint hyperinvariant subspaces.


References:

[1]
A. Atzmon, On the existence of hyperinvariant subspaces, J. Operator Theory, 11 (1984), 3-40. MR 85k:47005

[2]
B. Beauzamy, Introduction to Operator Theory and Invariant Subspaces, North Holland, Amsterdam, 1988. MR 90d:47001

[3]
I. Colojoara and C. Foias, Theory of generalized spectral operators, Gordon and Breach, New York, 1968. MR 52:15085

[4]
R. G. Douglas, On extending commutative semigroups of isometries, Bull. London Math. Soc, 1 (1969), 157-159. MR 39:7458

[5]
J.-P. Kahane, Séries de Fourier absolument convergentes, Springer-Verlag, 1970. MR 43:801

[6]
Y. Katznelson, An introduction to harmonic analysis, Dover, New York, 1976. MR 54:10976

[7]
L. Kérchy, Operators with regular norm-sequences, Acta Sci. Math. (Szeged), 63 (1997), 571-605. CMP 98:04

[8]
L. Kérchy and J. van Neerven, Polynomially bounded operators whose spectrum on the unit circle has measure zero, Acta Sci. Math. (Szeged), 63 (1997), 551-562. CMP 98:04

[9]
G. G. Lorentz, A contribution to the theory of divergent sequences, Acta Math., 80 (1948), 167-190. MR 10:367e

[10]
J. Zemánek, On the Gelfand-Hille theorems, Banach Center Publications, Volume 30, Polish Academy of Sciences, Warszawa, 1994, 369-385. MR 95f:47009


Similar Articles:

Retrieve articles in Proceedings of the American Mathematical Society with MSC (1991): 47A15, 47A60

Retrieve articles in all Journals with MSC (1991): 47A15, 47A60


Additional Information:

László Kérchy
Affiliation: Bolyai Institute, University of Szeged, Aradi vértanúk tere 1, H-6720 Szeged, Hungary
Email: kerchy@math.u-szeged.hu

DOI: 10.1090/S0002-9939-99-04842-X
PII: S 0002-9939(99)04842-X
Received by editor(s): August 6, 1997
Posted: January 28, 1999
Additional Notes: Research partially supported by Hungarian NFS Research grant no. T 022920.
Communicated by: David R. Larson
Copyright of article: Copyright 1999, American Mathematical Society


  AMS Website Logo Small Comments: webmaster@ams.org
© Copyright 2009, American Mathematical Society
Privacy Statement
Search the AMSPowered by Google