DOI

We consider the difference Schrödinger equation (Formula presented.) where z is a complex variable, E is a spectral parameter, and h is a small positive parameter. If the potential v is an analytic function, then, for h sufficiently small, the analytic solutions to this equation have standard semi-classical behavior that can be described by means of an analog of the complex WKB method for differential equations. We assume that v has a simple pole and, in its neighborhood, we study the asymptotics of meromorphic solutions to the difference Schrödinger equation.

Язык оригиналаанглийский
Страницы (с-по)1557-1573
Число страниц17
ЖурналApplicable Analysis
Том100
Номер выпуска7
Дата раннего онлайн-доступа16 авг 2019
DOI
СостояниеОпубликовано - 19 мая 2021

    Предметные области Scopus

  • Анализ
  • Прикладная математика

ID: 45217809