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Published in 2020 at "Ergodic Theory and Dynamical Systems"
DOI: 10.1017/etds.2018.48
Abstract: In this paper, we consider the spectrum of discrete quasi-periodic Schrödinger operators on $\ell ^{2}(\mathbb{Z})$ with the potentials $v\in C^{k}(\mathbb{T})$ . For sufficiently large $k$ , we show that the Lebesgue measure of the spectrum…
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Keywords:
periodic schr;
schr;
quasi periodic;
schr dinger ... See more keywords
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Published in 2021 at "Nonlinearity"
DOI: 10.1088/1361-6544/abc597
Abstract: We quantify the coupling asymptotics for the Lyapunov exponent of the quasi-periodic Schrödinger operator with two classes of finitely smooth potentials, which are well-studied in [23, 26]. We remark that the rate of convergence in…
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Keywords:
lyapunov exponent;
coupling asymptotics;
asymptotics lyapunov;
periodic schr ... See more keywords
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Published in 2019 at "TURKISH JOURNAL OF MATHEMATICS"
DOI: 10.3906/mat-1906-69
Abstract: We investigate the multidimensional Schrodinger operator L(q) with complex-valued periodic, with respect to a lattice, potential q when the Fourier coefficients of q with respect to the orthogonal system {exp(i(a,x))}, where a changes in the…
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Keywords:
adjoint multidimensional;
class;
multidimensional periodic;
class nonself ... See more keywords