Dispersive estimates for periodic discrete one-dimensional Schrödinger operators
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- by Yue Mi and Zhiyan Zhao PDF
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Abstract:
In this paper, we consider the periodic discrete one-dimensional Schrödinger operator \begin{equation*} (H_V\psi )_n=-(\psi _{n+1}+\psi _{n-1})+V_n\psi _n,\quad n\in \mathbb {Z}, \end{equation*} with $V_{n+N}=V_n$, $\forall \ n\in \mathbb {Z}$, for some $N\in \mathbb {N}^*$ and $V=\{V_j\}_{j=0}^{N-1}\in \mathbb {R}$. We show the dispersive estimate \begin{equation*} \|e^{-\mathrm {i}tH_V}\psi \|_{\ell ^\infty }\lesssim \|\psi \|_{\ell ^1} (1+|t|)^{-\min \left \{\frac 13,\frac 1{N+1}\right \}},\quad \forall \ \psi \in \ell ^1(\mathbb {Z}),\quad \forall \ t\in \mathbb {R}. \end{equation*}References
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Additional Information
- Yue Mi
- Affiliation: Department of Mathematics, Nanjing University, Nanjing 210093, People’s Republic of China; and Université Côte d’Azur, CNRS, Laboratoire J. A. Dieudonné, 06108 Nice, France
- MR Author ID: 1353395
- Email: miyue1995@163.com
- Zhiyan Zhao
- Affiliation: Université Côte d’Azur, CNRS, Laboratoire J. A. Dieudonné, 06108 Nice, France
- MR Author ID: 959505
- Email: zhiyan.zhao@univ-cotedazur.fr
- Received by editor(s): December 18, 2020
- Received by editor(s) in revised form: April 20, 2021
- Published electronically: October 19, 2021
- Additional Notes: The first author was supported by China Scholarship Council (CSC)(No. 202006190129).
Research of the second author was partially supported by NSFC grant (11971233). - Communicated by: Tanya Christiansen
- © Copyright 2021 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 150 (2022), 267-277
- MSC (2020): Primary 35P25, 47A40
- DOI: https://doi.org/10.1090/proc/15699
- MathSciNet review: 4335875