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# Cauchy problem for the fifth order Kadomtsev-Petviashvili (KPII) equation

• 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 $s$>$-\frac{4}{7}.$
Mathematics Subject Classification: Primary: 35Q53; Secondary: 37K05.

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