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Communication Dans Un Congrès Année : 2018

Difference equations, uniform quasiclassical asymptotics and Airy functions

Résumé

We consider the second order difference equation ψ(z + h) + ψ(z − h) + v(z)ψ(z) = 0 where z is a complex variable, h > 0 is a parameter, and v is an analytic function. As h → 0 the analytic solutions to this equation have quasiclassical behavior. In this note we describe their uniform asymptotics in neighborhoods of simple turning points, the neighborhoods being independent of h.
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Dates et versions

hal-02058815 , version 1 (12-03-2019)

Identifiants

Citer

A. Fedotov, F. Klopp. Difference equations, uniform quasiclassical asymptotics and Airy functions. International Conference “Days on Diffraction 2018”, Jun 2018, St. Petersbourg, Russia. pp.98-101, ⟨10.1109/DD.2018.8553493⟩. ⟨hal-02058815⟩
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