Abstract
In this paper, we study a Hamiltonian structure of the Vlasov–Poisson system, first mentioned by Fröhlich et al. (Commun Math Phys 288:1023–1058, 2009). To begin with, we give a formal guideline to derive a Hamiltonian on a subspace of complex-valued \({\mathcal{L}^{2}}\) integrable functions α on the one particle phase space \({\mathbb{R}^{2d}_{{\bf Z}}}\); s.t. \({f={\left|{\alpha}\right|}^2}\) is a solution of a collisionless Boltzmann equation. The only requirement is a sufficiently regular energy functional on a subspace of distribution functions \({f \in \mathcal{L}^{1}}\). Secondly, we give a full well-posedness theory for the obtained system corresponding to Vlasov–Poisson in \({d \geqq 3}\) dimensions. Finally, we adapt the classical globality results (Lions and Perthame in Invent Math 105:415–430, 1991; Pfaffelmoser in J Differ Equ 95:281–303, 1992; Schaeffer in Commun Partial Differ Equ 16(8–9):1313–1335, 1991) for d = 3 to the generalized system.
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Acknowledgements
I would like to thank Markus Kunze for his support and many useful discussions and hints, and also Antti Knowles, for a short discussion during his visit to our department. I would also like to thank the referees for their detailed and insightful comments on the paper.
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Communicated by C. Mouhot
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Neiss, R.A. Generalized Symplectization of Vlasov Dynamics and Application to the Vlasov–Poisson System. Arch Rational Mech Anal 231, 115–151 (2019). https://doi.org/10.1007/s00205-018-1275-8
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DOI: https://doi.org/10.1007/s00205-018-1275-8