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arXiv · 2207.08315

Global well-posedness and stability of the inhomogeneous kinetic wave equation near vacuum

Ioakeim Ampatzoglou
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Abstract

In this paper, we prove global in time existence, uniqueness and stability of mild solutions near vacuum for the 4-wave inhomogeneous kinetic wave equation, for Laplacian dispersion relation in dimension $d=2,3$. We also show that for non-negative initial data, the solution remains non-negative. This is achieved by connecting the inhomogeneous kinetic wave equation to the cubic part of a quantum Boltzmann-type equation with moderately hard potential and no collisional averaging.

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Ioakeim Ampatzoglou. 2022-07-17. Global well-posedness and stability of the inhomogeneous kinetic wave equation near vacuum. https://doi.org/10.3934/krm.2024003

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