On the parabolic equation method for the problem of diffraction by strongly elongated spheroid

Ivan V. Andronov, Boris P. Belinskiy

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Previously, the parabolic equation method was used to study the high-frequency acoustic diffraction by a strongly elongated spheroid. This paper represents a continuation of that study. We justify some formal steps of the parabolic equation method at the level typical for the general PDE theory. In particular, we prove that a formal solution of the parabolic equation is actually the classical solution. We prove its uniqueness. We use various asymptotic properties of the higher functions. Some of these properties are new. We study location of zeros of the Whittaker functions.

Original languageEnglish
Pages (from-to)1176-1202
Number of pages27
JournalJournal of Mathematical Analysis and Applications
Issue number2
Publication statusPublished - 15 Dec 2017


Scopus subject areas

  • Analysis
  • Applied Mathematics

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