Originally prepared for the Office of Naval Research, this important monograph introduces various methods for the asymptotic evaluation of integrals containing a large parameter, and solutions of ordinary linear differential equations by means of asymptotic expansions. Author''s preface. Bibliography.
although by now it is quite outdated. However, books on asymptotic mathematics are still rare and you should not begin an honest study without consulting Erdelyis's masterpiece. Here are the basics!
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