Asymptotic integration theory for $f' + P(z)f = 0$

التفاصيل البيبلوغرافية
العنوان: Asymptotic integration theory for $f' + P(z)f = 0$
المؤلفون: Gundersen, Gary G., Heittokangas, Janne, Zemirni, Amine
سنة النشر: 2020
المجموعة: Mathematics
مصطلحات موضوعية: Mathematics - Complex Variables, 34M10
الوصف: Asymptotic integration theory gives a collection of results which provide a thorough description of the asymptotic growth and zero distribution of solutions of (*) $f''+P(z)f=~0$, where $P(z)$ is a polynomial. These results have been used by several authors to find interesting properties of solutions of (*). That said, many people have remarked that the proofs and discussion concerning asymptotic integration theory that are, for example, in E.~Hille's 1969 book \emph{Lectures on Ordinary Differential Equations} are difficult to follow. The main purpose of this paper is to make this theory more understandable and accessible by giving complete explanations of the reasoning used to prove the theory and by writing full and clear statements of the results. A considerable part of the presentation and explanation of the material is different from that in Hille's book.
Comment: 31 pages, 5 figures
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2008.10262
رقم الأكسشن: edsarx.2008.10262
قاعدة البيانات: arXiv