A real space method for averaging lemmas

A real space method for averaging lemmas
复制标题

平均引理的实空间方法

DOI:
10.1016/j.matpur.2004.03.004
复制
发表时间:
2004
期刊:
Journal de Mathématiques Pures et Appliquées
影响因子:
--
通讯作者:
L. Vega
L. Vega
中科院分区:
--
文献类型:
--
作者:
P. Jabin;L. Vega

文献摘要

被引文献

相似文献

我们引入一种新的方法来证明平均引理,即,证明了一个正则化的影响,平均速度的解决方案的动力学方程。该方法不需要使用傅立叶变换,整个过程在“真实的空间”中进行。因此,我们能够改善已知的结果时,可积性的解决方案(或右手边的方程)是不同的空间和速度。我们还提出了几个反例来检验新结果的最优性。
We introduce a new method to prove averaging lemmas, i.e., prove a regularizing effect on the average in velocity of a solution to a kinetic equation. The method does not require the use of Fourier transform and the whole procedure is performed in the ‘real space’. We are consequently able to improve the known result when the integrability of the solution (or the right-hand side of the equation) is different in space and in velocity. We also present a few counterexamples to test the optimality of the new results.