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arXiv 2203.04731math.APmath.OC
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具有非光滑哈密顿量和标量守恒律的Hamilton-Jacobi方程的可达集

Reachable set for Hamilton-Jacobi equations with non-smooth Hamiltonian and scalar conservation laws

Carlos Esteve-Yagüe, Enrique Zuazua

摘要:

给出了具有凸Hamilton算子的Hamilton-Jacobi方程在时间$T$上的黏性解与任意初始条件相关联的算子的值域的充分刻画.我们的主要动机是能够处理的情况下,凸哈密顿没有进一步的正则性假设。我们给予特别注意的情况下,$H(p) = |p|$,我们提供了一个相当几何描述的粘性算子的范围内的一个内部球条件的子水平集。从我们的可达集的特征,我们能够推导出进一步的结果,例如,尖锐的正则性估计的可达功能,以及结构特性的可达集。最后将所得结果推广到一维标量守恒律的情形。

英文摘要:

We give a full characterization of the range of the operator which associates, to any initial condition, the viscosity solution at time $T$ of a Hamilton-Jacobi equation with convex Hamiltonian. Our main motivation is to be able to treat the case of convex Hamiltonians with no further regularity assumptions. We give special attention to the case $H(p) = |p|$, for which we provide a rather geometrical description of the range of the viscosity operator by means of an interior ball condition on the sublevel sets. From our characterization of the reachable set, we are able to deduce further results concerning, for instance, sharp regularity estimates for the reachable functions, as well as structural properties of the reachable set. The results are finally adapted to the case of scalar conservation laws in dimension one.

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。

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