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Cauchy problem for the fifth order Kadomtsev-Petviashvili (KPII) equation
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2006
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Initial Value ProblemFifth Order Kadomtsev-petviashviliElliptic EquationRiemann-hilbert ProblemCauchy ProblemParabolic EquationOscillation TheoryNonlinear Hyperbolic ProblemIntegrable SystemAnisotropic Sobolev
It is proved that the initial value problem for the fifth order Kadomtsev-Petviashvili (KPII) equation is locally well-posed in the anisotropic Sobolev spaces $H^{s_1,s_2}( \mathbb R^2) $ with $s_1$>$-\frac{5}{4}$ and $s_2\geq 0,$ and globally well-posed in $H^{s,0}(\mathbb R^2) $ with $s$>$-\frac{4}{7}.$