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- W2040985720 abstract "In this paper, error analysis is established for Runge-Kutta discontinuous Galerkin (RKDG) methods to solve the Vlasov-Maxwell system. This nonlinear hyperbolic system describes the time evolution of collisionless plasma particles of a single species under the self-consistent electromagnetic field, and it models many phenomena in both laboratory and astrophysical plasmas. The methods involve a third order TVD Runge-Kutta discretization in time and upwind discontinuous Galerkin discretizations of arbitrary order in phase domain. With the assumption that the exact solution has sufficient regularity, the $L^2$ errors of the particle number density function as well as electric and magnetic fields at any given time $T$ are bounded by $C h^{k+frac{1}{2}}+Ctau^3$ under a CFL condition $tau /h leq gamma$. Here $k$ is the polynomial degree used in phase space discretization, satisfying $k geq left lceil frac{d_x + 1}{2} right rceil$ (the smallest integer greater than or equal to $frac{d_x+1}{2}$, with $d_x$ being the dimension of spatial domain), $tau$ is the time step, and $h$ is the maximum mesh size in phase space. Both $C$ and $gamma$ are positive constants independent of $h$ and $tau$, and they may depend on the polynomial degree $k$, time $T$, the size of the phase domain, certain mesh parameters, and some Sobolev norms of the exact solution. The analysis can be extended to RKDG methods with other numerical fluxes and to RKDG methods solving relativistic Vlasov-Maxwell equations." @default.
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- W2040985720 date "2013-06-03" @default.
- W2040985720 modified "2023-10-18" @default.
- W2040985720 title "Error Estimates of Runge-Kutta Discontinuous Galerkin Methods for the Vlasov-Maxwell System" @default.
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- W2040985720 doi "https://doi.org/10.48550/arxiv.1306.0636" @default.
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