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Random data theory for the cubic fourth-order nonlinear Schr\"odinger equation

By Van Duong Dinh


We consider the cubic nonlinear fourth-order Schr\"odinger equation \[ i\partial_t u - \Delta^2 u + \mu \Delta u = \pm |u|^2 u, \quad \mu \geq 0 \] on $\mathbb{R}^N, N \geq 5$ with random initial data. We prove almost sure local well-posedness below the scaling critical regularity. We also prove probabilistic small data global well-posedness and scattering. Finally, we prove the global well-posedness and scattering with a large probability for initial data randomized on dilated cubes.Comment: 24 pages. arXiv admin note: substantial text overlap with arXiv:1405.7327 by other author

Topics: Mathematics - Analysis of PDEs
Year: 2020
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