Some A priori estimates for the homogeneous Landau equation with soft potentials
Some A priori estimates for the homogeneous Landau equation with soft potentials
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具有软势的齐次 Landau 方程的一些先验估计
DOI:
10.3934/krm.2015.8.617
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Chunjin Lin
中科院分区:
文献类型:
--
作者:
Radjesvarane Alexandre;J. Liao;Chunjin Lin
This paper deals with the derivation of some \'a priori estimates for the homogeneous Landau equation with soft potentials. Using the coercivity of the Landau operator for soft potentials, we prove a global estimate of weak solutions in $L^2$ space without any smallness assumption on the initial data for $ -2 < \gamma <0$. For the stronger case $ -3 \leq \gamma \leq -2$, which covers in particular the Coulomb case, we get such a global estimate, but in some weighted $L^2$ space and under a smallness assumption on initial data.