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Large data global solution of the 3D RVM system with cylindrical symmetry
PDE & Applied Mathematics| Speaker: | Xuecheng Wang, Tsinghua University |
| Location: | 2112 MSB and https://ucdavis.zoom.us/j/95250180136 |
| Start time: | Thu, Apr 23 2026, 4:10PM |
Description
The 3D relativistic Vlasov-Maxwell system is one of the fundamental models in the plasma physics, which describes the dynamics of electrons and ions under the electromagnetic field created by particles themselves. A major open problem in the field is the existence of global solution for smooth localized large initial data. Inspired by the smoothing effect identified by Klainerman-Staffilani in 2002, we reveal a new iterative smoothing scheme together with a new weighted space-time estimate of the distribution function for the axisymmetric case. As a result, we are able to control the velocity characteristics over time via a bootstrap argument, which provide further control for the $L^\infty$-norm of the electromagnetic field over time by using the classic moment method. It confirms the continuation criteria of Luk-Strain (2014), which means that the regular solution doesn’t blow up in finite time, i.e., solution is indeed global.
Zoom link: https://ucdavis.zoom.us/j/95250180136
