Asymptotic analysis of oscillatory integrals via the Newton polyhedra of the phase and the amplitude

2012/03/05 by Koji Cho, Joe Kamimoto, Toshihiro Nose · 2 citations
Mathematics · #math.CA #math.CV #msc:14B05 #msc:14M25 #msc:58K55

paper · pdf · doi:10.2969/jmsj/06520521

published as J. Math. Soc. Japan, 65, No. 2 (2013) 521-562 · 36 pages

arxiv created 2012/03/05 · arxiv updated 2013/06/10

Abstract

The asymptotic behavior at infinity of oscillatory integrals is in detail investigated by using the Newton polyhedra of the phase and the amplitude. We are especially interested in the case that the amplitude has a zero at a critical point of the phase. The properties of poles of local zeta functions, which are closely related to the behavior of oscillatory integrals, are also studied under the associated situation.

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