Article Contents
Article Contents

# Growth estimates and uniform decay for a collisionless plasma

• We consider the classical Vlasov-Poisson system in three space dimensions in the electrostatic case. For smooth solutions starting from compactly supported initial data, an estimate on velocities is derived, showing an upper bound with a growth rate no larger than $(t\ln t)^{6/25}$. As a consequence, a decay estimate is obtained for the electric field in the $L^\infty$ norm.
Mathematics Subject Classification: Primary: 82D10; Secondary: 35B40, 76X05.

 Citation:

•  [1] C. Bardos and P. Degond, Global existence for the Vlasov Poisson equation in $3$ space variables with small initial data, Ann. Inst. H. Poincaré Anal. Non Linéaire, 2 (1985), 101-118. [2] J. Batt, M. Kunze and G. Rein, On the asymptotic behaviour of a one-dimensional monocharged plasma, Adv. Differential Equations, 3 (1998), 271-292. [3] R. Glassey, "The Cauchy Problem in Kinetic Theory," SIAM, 1996. [4] E. Horst, Symmetric plasmas and their decay, Comm. Math. Phys., 126 (1990), 613-633.doi: 10.1007/BF02125703. [5] E. Horst, On the asymptotic growth of the solutions of the Vlasov-Poisson system, Math. Meth. Appl. Sci., 16 (1993), 75-85.doi: 10.1002/mma.1670160202. [6] R. Illner and G. Rein, Time decay of the solutions of the Vlasov-Poisson system in the plasma physical case, Math. Meth. Appl. Sci., 19 (1996), 1409-1413.doi: 10.1002/(SICI)1099-1476(19961125)19:17<1409::AID-MMA836>3.0.CO;2-2. [7] P. L. Lions and B. Perthame, Propagation of moments and regularity for the 3-dimensional Vlasov-Poisson system, Invent. Math., 105 (1991), 415-430.doi: 10.1007/BF01232273. [8] C. Pallard, A note on the growth of velocities in a collisionless plasma, Math. Meth. Appl. Sci. (2011), to appear. [9] B. Perthame, Time decay, propagation of low moments and dispersive effects for kinetic equations, Comm. P.D.E., 21 (1996), 659-686. [10] K. Pfaffelmoser, Global classical solutions of the Vlasov-Poisson system in three dimensions for general initial data, J. Diff. Eqns., 95 (1992), 281-303.doi: 10.1016/0022-0396(92)90033-J. [11] G. Rein, Growth estimates for the solutions of the Vlasov-Poisson system in the plasma physics case, Math. Nachr., 191 (1998), 269-278.doi: 10.1002/mana.19981910114. [12] G. Rein, Collisionless kinetic equations from astrophysics -- the Vlasov-Poisson system, Handbook of differential equations: evolutionary equations, Vol. III, 383-476, Elsevier/North-Holland, Amsterdam, 2007. [13] D. Salort, Transport equations with unbounded force fields and application to the Vlasov-Poisson equation, Math. Models Methods Appl. Sci., 19 (2009), 199-228.doi: 10.1142/S0218202509003401. [14] J. Schaeffer, Global existence of smooth solutions to the Vlasov-Poisson system in three dimensions, Comm. P.D.E., 16 (1991), 1313-1335.doi: 10.1080/03605309108820801. [15] J. Schaeffer, Asymptotic growth bounds for the Vlasov-Poisson system, Math. Meth. Appl. Sci., 34 (2010), 262-277.doi: 10.1002/mma.1354.