• Title/Summary/Keyword: zeros of Fourier integrals

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THE ZERO-DISTRIBUTION AND THE ASYMPTOTIC BEHAVIOR OF A FOURIER INTEGRAL

  • Ki, Ha-Seo;Kim, Young-One
    • Journal of the Korean Mathematical Society
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    • v.44 no.2
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    • pp.455-466
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    • 2007
  • The zero-distribution of the Fourier integral $${\int}^{\infty}_{-{\infty}}\;Q(u)e^{p(u)+^{izu}du$$, where P is a polynomial with leading term $-u^{2m}(m\;{\geq}\;1)$ and Q an arbitrary polynomial, is described. To this end, an asymptotic formula for the integral is established by applying the saddle point method.