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:
影响因子:
--
通讯作者:
L. Vega
中科院分区:
文献类型:
--
作者:
P. Jabin;L. Vega
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.