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The Complete (Lp , Lp ) Mapping Properties of Some Oscillatory Integrals in Several Dimensions

Published online by Cambridge University Press:  20 November 2018

G. Sampson  and
P. Szeptycki
G. Sampson
Affiliation:
Department of Mathematics, Auburn University, Auburn, Albama 36849-5310, U.S.A.
P. Szeptycki
Affiliation:
Department of Mathematics, University of Kansas, Lawrence, Kansas 66045-2142, U.S.A.
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Abstract

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We prove that the operators $\int{_{\mathbb{R}_{+}^{2}}{{e}^{i{{x}^{a}}\cdot {{y}^{b}}}}\varphi (x,y)f(y)dy}$ map ${{L}^{p}}({{\mathbb{R}}^{2}})$ into itself for $p\,\in \,J\,=\,\,\left[ \frac{{{a}_{1}}+{{b}_{1}}}{{{a}_{1}}+(\frac{{{b}_{1}}r}{2})},\frac{{{a}_{1}}+{{b}_{1}}}{{{a}_{1}}+(1-\frac{r}{2})} \right]$ if ${{a}_{l}},{{b}_{l}}\ge 1$ and $\varphi (x,y)=|x-y{{|}^{-r}},0\le r<2$ , the result is sharp. Generalizations to dimensions $d\,>\,2$ are indicated.

Keywords

42B2046B7047G10

Information

Type
Research Article
Information
Canadian Journal of Mathematics , Volume 53 , Issue 5 , 01 October 2001 , pp. 1031 - 1056
Copyright
Copyright © Canadian Mathematical Society 2001

References

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