FLOQUET OPERATORS WITH SINGULAR SPECTRUM, III

Authors
Citation
Js. Howland, FLOQUET OPERATORS WITH SINGULAR SPECTRUM, III, Annales de l'I.H.P. Physique theorique, 69(2), 1998, pp. 265-273
Citations number
8
Categorie Soggetti
Physics
ISSN journal
02460211
Volume
69
Issue
2
Year of publication
1998
Pages
265 - 273
Database
ISI
SICI code
0246-0211(1998)69:2<265:FOWSSI>2.0.ZU;2-1
Abstract
The quasienergy for the time-periodic Hamiltonian \p\(alpha) + v(theta , t) on L-2[0,2 pi] has no absolutely continuous spectrum if 0 < alpha < 1 and v(theta, t) is C-infinity, although the gap between successiv e eigenvalues of \p\(alpha) is decreasing. (C) Elsevier, Paris.