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arXiv 2108.05050math.AP
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自治Hamilton向量场的积分曲线的非唯一性

Non-uniqueness of integral curves for autonomous Hamiltonian vector fields

Vikram Giri, Massimo Sorella

摘要:

本文证明了W^{1,r}(T^d;R^d)(r =4)中存在一个自治的Hamilton向量场< d-1and d>,使得相应的输运方程有非唯一的正解.作为Ambrosio叠加原理的结果,我们证明了这个向量场具有非唯一的积分曲线,并且证明了沿着这些积分曲线,哈密顿量不是常数.

英文摘要:

In this work we prove the existence of an autonomous Hamiltonian vector field in W^{1,r}(T^d;R^d) with r< d-1and d>=4 for which the associated transport equation has non-unique positive solutions. As a consequence of Ambrosio superposition principle, we show that this vector field has non-unique integral curves with a positive Lebesgue measure set of initial data and moreover we show that the Hamiltonian is not constant along these integral curves.

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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