On asymptotic behavior of Heine-Stieltjes and Van Vleck polynomials

We investigate the strong asymptotics of Heine-Stieltjes polynomials - polynomial solutions of a second order differential equations with complex polynomial coefficients. The solution is given in terms of critical measures (saddle points of the weighted logarithmic energy on the plane), that are tig...

詳細記述

書誌詳細
主要な著者: Martínez-Finkelshtein, Andrei, Rakhmanov, Evgenii A.
フォーマット: info:eu-repo/semantics/article
言語:English
出版事項: 2012
主題:
オンライン・アクセス:http://hdl.handle.net/10835/1627
その他の書誌記述
要約:We investigate the strong asymptotics of Heine-Stieltjes polynomials - polynomial solutions of a second order differential equations with complex polynomial coefficients. The solution is given in terms of critical measures (saddle points of the weighted logarithmic energy on the plane), that are tightly related to quadratic differentials with closed trajectories on the plane. The paper is a continuation of the research initiated in [arXiv:0902.0193]. However, the starting point here is the WKB method, which allows to obtain the strong asymptotics.