On the Reducibility of Quasiperiodic Linear Hamiltonian Systems and Its Applications in Schrödinger Equation

In this paper, we consider the reducibility of the quasiperiodic linear Hamiltonian system ẋ=A+εQt, where A is a constant matrix with possible multiple eigenvalues, Qt is analytic quasiperiodic with respect to t, and ε is a small parameter. Under some nonresonant conditions, it is proved that, for...

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Main Authors: Nina Xue, Wencai Zhao
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Journal of Function Spaces
Online Access:http://dx.doi.org/10.1155/2020/6260253
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author Nina Xue
Wencai Zhao
author_facet Nina Xue
Wencai Zhao
author_sort Nina Xue
collection DOAJ
description In this paper, we consider the reducibility of the quasiperiodic linear Hamiltonian system ẋ=A+εQt, where A is a constant matrix with possible multiple eigenvalues, Qt is analytic quasiperiodic with respect to t, and ε is a small parameter. Under some nonresonant conditions, it is proved that, for most sufficiently small ε, the Hamiltonian system can be reduced to a constant coefficient Hamiltonian system by means of a quasiperiodic symplectic change of variables with the same basic frequencies as Qt. Applications to the Schrödinger equation are also given.
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institution Kabale University
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publishDate 2020-01-01
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series Journal of Function Spaces
spelling doaj-art-0a4423d02a474fcca196e477117c8ea02025-02-03T06:46:53ZengWileyJournal of Function Spaces2314-88962314-88882020-01-01202010.1155/2020/62602536260253On the Reducibility of Quasiperiodic Linear Hamiltonian Systems and Its Applications in Schrödinger EquationNina Xue0Wencai Zhao1School of Mathematics and Information Sciences, Weifang University, Weifang 261061, ChinaCollege of Mathematics and Systems Science, Shandong University of Science and Technology, Qingdao, ChinaIn this paper, we consider the reducibility of the quasiperiodic linear Hamiltonian system ẋ=A+εQt, where A is a constant matrix with possible multiple eigenvalues, Qt is analytic quasiperiodic with respect to t, and ε is a small parameter. Under some nonresonant conditions, it is proved that, for most sufficiently small ε, the Hamiltonian system can be reduced to a constant coefficient Hamiltonian system by means of a quasiperiodic symplectic change of variables with the same basic frequencies as Qt. Applications to the Schrödinger equation are also given.http://dx.doi.org/10.1155/2020/6260253
spellingShingle Nina Xue
Wencai Zhao
On the Reducibility of Quasiperiodic Linear Hamiltonian Systems and Its Applications in Schrödinger Equation
Journal of Function Spaces
title On the Reducibility of Quasiperiodic Linear Hamiltonian Systems and Its Applications in Schrödinger Equation
title_full On the Reducibility of Quasiperiodic Linear Hamiltonian Systems and Its Applications in Schrödinger Equation
title_fullStr On the Reducibility of Quasiperiodic Linear Hamiltonian Systems and Its Applications in Schrödinger Equation
title_full_unstemmed On the Reducibility of Quasiperiodic Linear Hamiltonian Systems and Its Applications in Schrödinger Equation
title_short On the Reducibility of Quasiperiodic Linear Hamiltonian Systems and Its Applications in Schrödinger Equation
title_sort on the reducibility of quasiperiodic linear hamiltonian systems and its applications in schrodinger equation
url http://dx.doi.org/10.1155/2020/6260253
work_keys_str_mv AT ninaxue onthereducibilityofquasiperiodiclinearhamiltoniansystemsanditsapplicationsinschrodingerequation
AT wencaizhao onthereducibilityofquasiperiodiclinearhamiltoniansystemsanditsapplicationsinschrodingerequation