An energy method for averaging lemmas
An energy method for averaging lemmas
复制标题
平均引理的能量方法
DOI:
--
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
N. Lerner
中科院分区:
文献类型:
--
作者:
Diogo Ars'enio;N. Lerner
This work introduces a new approach to velocity averaging lemmas in kinetic theory. This approach---based upon the classical energy method---provides a powerful duality principle in kinetic transport equations which allows for a natural extension of classical averaging lemmas to previously unknown cases where the density and the source term belong to dual spaces. More generally, this kinetic duality principle produces regularity results where one can trade a loss of regularity or integrability somewhere in the kinetic transport equation for a suitable opposite gain elsewhere. Also, it looks simpler and more robust to rely on proving inequalities instead of constructing exact parametrices.
The results in this article are introduced from a functional analytic point of view. They are motivated by the abstract regularity theory of kinetic transport equations. However, we may recall that velocity averaging lemmas have profound implications in kinetic theory and its related physical models. In particular, the precise formulation of such results has the potential to lead to important applications to the regularity of renormalizations of Boltzmann-type equations, as well as kinetic formulations of gas dynamics, for instance.
影响因子:
2.2
作者:
Jabin, Pierre-Emmanuel;Lin, Hsin-Yi;Tadmor, Eitan
通讯作者:
Tadmor, Eitan
影响因子:
1.9
作者:
Bennett J
通讯作者:
Bennett J
影响因子:
2.2
作者:
Arsénio, Diogo;Masmoudi, Nader
通讯作者:
Masmoudi, Nader