In this paper, we obtain the Lp\documentclass[12pt]{minimal}
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\begin{document}$${L^p}$$\end{document} boundedness of Fourier integral operators with rough amplitude a∈L∞Sρm\documentclass[12pt]{minimal}
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\begin{document}$$a \in {L^\infty }S_\rho ^m$$\end{document} and phase φ\documentclass[12pt]{minimal}
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\begin{document}$$\varphi $$\end{document} that satisfies some generalized derivative estimation and some measure condition. Our main conclusions extend and improve some known results about Lp\documentclass[12pt]{minimal}
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\begin{document}$${L^p}$$\end{document} boundedness of Fourier integral operators.