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

作者：Cho Koji^*; Kamimoto Joe; Nose Toshihiro

来源：Journal of the Mathematical Society of Japan, 2013, 65(2): 521-562.

DOI：10.2969/jmsj/06520521

• oscillatory integrals
• oscillation index and its multiplicity
• local zeta function
• asymptotic expansion
• Newton polyhedra of the phase and the amplitude
• essential set

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.

• 出版日期2013-4