Fabbri, R.:
On the Lyapunov exponent and exponential dichotomy for the quasi-periodic Schrödinger operator
Bollettino dell'Unione Matematica Italiana Serie 8 5-B (2002), fasc. n.1, p. 149-161, Unione Matematica Italiana (English)
pdf (264 Kb), djvu (167 Kb). | MR1881929 | Zbl 1177.34108
Sunto
In questo lavoro viene studiato l'esponente di Lyapunov $\beta(E)$ per l'operatore di Schrödinger in una dimensione con potenziale quasi periodico. Indicato con $\Gamma\subset \mathbb{R}^{k}$ l'insieme delle frequenze le cui componenti sono razionalmente indipendenti e considerato $0\leq r <1$, si fa vedere come $\beta(E)$ risulti zero sul complementare in $\Gamma \times C^{r} (\mathbb{T}^{k} )$ dell'insieme $\mathcal{D}$ in cui si ha dicotomia esponenziale (D.E.). Le tecniche ed i metodi usati sono basati sulle proprieta' del numero di rotazione e della D.E. per l'operatore considerato.
Referenze Bibliografiche
[Ch]
G. CHOQUET,
Lectures on Analysis, vol I, II, III.
Benjamin N.Y.,
1969. |
Zbl 0181.39601[CS]
V. CHULAEVSKY-
YA. SINAI,
Anderson localization for the 1-D discrete Schrödinger operators with two-frequency potential,
Comm. Math. Phys,
125 (
1989), 91-112. |
fulltext mini-dml |
MR 1017741 |
Zbl 0743.60058[Co]
A. COPPEL,
Dichotomies in Stability Theory,
Lectures Notes in Mathematics,
629,
Springer-Verlag, New York/Heidelberg/Berlin (
1978). |
MR 481196 |
Zbl 0376.34001[DC-J]
C. DE CONCINI-
R. JOHNSON,
The algebraic-geometric AKNS potentials,
Erg. Th. Dyn. Sys. 7 (
1992), 1-24. |
MR 886368 |
Zbl 0636.35077[E2]
L.H. ELIASSON,
Discrete one-dimensional quasi-periodic Schrodinger operator with pure point spectrum,
Acta Math.,
179 (
1997), 153-196. |
MR 1607554 |
Zbl 0908.34072[F] R. FABBRI, Genericità dell'Iperbolicita nei Sistemi Differenziali Lineari di Dimensione Due, Ph.D. Thesis, Università di Firenze, 1997.
[FJ1]
R. FABBRI-
R. JOHNSON,
On the Lyapunov exponent of certain $SL(2, \mathbb{R})$-valued cocycles,
Diff. Eqns. and Dynam. Sys.,
7, 3 (
1999), 349-370. |
MR 1861078 |
Zbl 0989.34041[FJ2]
R. FABBRI-
R. JOHNSON,
Genericity of exponential dichotomy for two-dimensional quasi-periodic linear differential systems,
Ann. Mat. Pura ed Appl.,
178 (
2000), 175-193. |
MR 1849385 |
Zbl 1037.34043[Fe]
H. FEDERER,
Geometric Measure Theory,
Springer-Verlag, New York / Heidelberg / Berlin,
1967. |
Zbl 0176.00801[FJP]
R. FABBRI-
R. JOHNSON-
R. PAVANI,
On the Nature of the Spectrum of the Quasi-Periodic Schrodinger Operator,
Nonlinear Analysis RWA,
3 (
2001), 37-59. |
MR 1941947 |
Zbl 1036.34097[FSW]
J. FRÖHLICH-
T. SPENCER-
P. WITTWER,
Localization for a class of one dimensional quasi-periodic Schrodinger operators,
Commun. Math. Phys.,
132 (
1990), 5-25. |
fulltext mini-dml |
MR 1069198 |
Zbl 0722.34070[GJ]
R. GIACHETTI-
R. JOHNSON,
Spectral theory of two-dimensional almost periodic differential operators and its relation to classes of nonlinear evolution equations,
Il Nuovo Cimento,
82 (
1984), 125-168. |
MR 770735[H]
M. HERMAN,
Une méthode pour minorer les exposants de Lyapunov et quelques exemples montrant le caractèr local d¡¯un théorèm d'Arnold et de Moser sur le tore en dimension 2,
Commun. Math. Helv.,
58 (
1983), 453-502. |
MR 727713 |
Zbl 0554.58034[J1]
R. JOHNSON,
Exponential dichotomy, rotation number, and linear differential operators with bounded coefficients,
Journal of Differential Equations,
61 (
1986), 54-78. |
MR 818861 |
Zbl 0608.34056[J2]
R. JOHNSON,
Cantor spectrum for the quasi-periodic Schrodinger equation,
Journal of Differential Equations,
91 (
1991), 88-110. |
MR 1106119 |
Zbl 0734.34074[JPS]
R. JOHNSON-
K. J. PALMER-
G. R. SELL,
Ergodic properties of linear dynamical systems,
Siam J. Math. Anal.,
18 (
1987), 1-33. |
MR 871817 |
Zbl 0641.58034[K]
S. KOTANI,
Lyapunov indices determine absolutely continuous spectra of stationary random one-dimensional Scrodinger operators,
Proc. Taniguchi Symp. S.S., Katata (
1982), 225-247. |
MR 780760 |
Zbl 0549.60058[MW]
W. MAGNUS-
S. WINKLER,
Hill's Equation, New York-London-Sydney,
Interscience Publishers,
1966. |
MR 197830 |
Zbl 0158.09604[Ma]
R. MAÑÉ,
OSELEDEC'S THEOREM FROM THE GENERIC VIEWPOINT,
PROC. INT. CONGR. MATH. 1983, WARSAW, 1296-1276. |
MR 804776 |
Zbl 0584.58007[M1]
V. MILLIONŠČIKOV,
Proof of the existence...almost periodic coefficients,
Differential Equations,
4 (
1968), 203-205. |
MR 229912 |
Zbl 0236.34006[M2]
V. MILLIONŠČIKOV,
Typicality of almost reducible systems with almost periodic coefficients,
Differential Equations,
14 (
1978), 448-450. |
MR 508462 |
Zbl 0434.34027[Mo]
J. MOSER,
An example of a Schrödinger equation with almost periodic potential and nowhere dense spectrum,
Comment. Math. Helvetici,
56 (
1981), 198-224. |
MR 630951 |
Zbl 0477.34018[MP]
J. MOSER-
J. PÖSCHEL,
An extension of a result by Dinaburg and Sinai on quasi-periodic potentials,
Comment. Math. Helvetici,
59 (
1984), 39-85. |
MR 743943 |
Zbl 0533.34023[N]
M. NERURKAR,
Positive exponents for a dense class of continuous $SL(2, \mathbb{R})$-valued cocycles which arise as solutions to strongly accessible linear differential systems,
Contemp. Math., vol.
215 (
1998),
AMS, 265-278. |
MR 1603050 |
Zbl 0953.34041[P1]
K. PALMER,
Exponential dichotomies and transversal homoclinic points,
Jour. of Diff. Eqns.,
55 (
1984), 225-256. |
MR 764125 |
Zbl 0508.58035[P2]
K. PALMER,
Exponential dichotomies, the shadowing lemma and transversal homoclinic points,
Dynamics Reported, Vol. 1 (
1988), 265-306. |
MR 945967 |
Zbl 0676.58025[SS]
R. J. SACKER-
G. R. SELL,
A spectral theory for linear differential systems,
Journal of Differential Equations,
27 (
1978), 320-358. |
MR 501182 |
Zbl 0372.34027[S]
YA. SINAI,
Anderson localization for one-dimensional difference Schrödinger operator with quasiperiodic potential,
Journal of Statistical Physics,
46 (
1987), 861-909. |
MR 893122 |
Zbl 0682.34023[W1]
M. WOJTKOWSKI,
Invariant families of cones and Lyapunov exponents,
Ergod. Th. & Dynam. Sys.,
5 (
1985), 145-161. |
Zbl 0578.58033[Y1]
L. S. YOUNG,
Some open sets of nonuniformly hyperbolic cocycles,
Ergod. Th. & Dynam. Sys.,
13 (
1993), 409-415. |
Zbl 0797.58041[Y2]
L. S. YOUNG,
Lyapounov exponents for some quasi-periodic cocycles,
Ergod. Th. & Dynam. Sys.,
17 (
1997), 483-504. |
Zbl 0873.28013