arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0706.2104math.AP
收藏

非线性标量守恒律的均匀化

Homogenization of nonlinear scalar conservation laws

Anne-Laure Dalibard

摘要:

研究了方程$\p_t \ue + \dv_x[A(\frac{x}{\e},\ue)] =0$熵解的极限$\e\to 0$。我们证明了序列$\ue$双尺度收敛于一个函数$u(t,x,y)$,并且$u$是极限演化问题的唯一解.值得注意的是,极限问题不是一个标量守恒律,而是一个宏观和微观变量混合的动力学方程。我们还证明了$L^1_{\text{loc}}$的一个强收敛结果。

英文摘要:

We study the limit as $\e\to 0$ of the entropy solutions of the equation $\p_t \ue + \dv_x[A(\frac{x}{\e},\ue)] =0$. We prove that the sequence $\ue$ two-scale converges towards a function $u(t,x,y)$, and $u$ is the unique solution of a limit evolution problem. The remarkable point is that the limit problem is not a scalar conservation law, but rather a kinetic equation in which the macroscopic and microscopic variables are mixed. We also prove a strong convergence result in $L^1_{\text{loc}}$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑