Asymptotic expansions for some integrals of quotients with degenerated divisors

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S. Kuksin
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[1] Université Paris Diderot,CNRS, Institut de Mathémathiques de Jussieu–Paris Rive Gauche, UMR 7586
[2] Sorbonne Paris Cité,undefined
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We study the asymptotic expansion as ν → 0 for integrals over R2d = {(x, y)} of the quotients F(x, y)/((x · y)2 + (νΓ(x, y))2), where Γ is strictly positive and F decays at infinity sufficiently fast. Integrals of this kind appear in the description of the four-waves interactions.
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页码:476 / 487
页数:11
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