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arXiv 2001.01512math.AP
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不可压缩流体动力学中的极大耗散解

Maximal dissipative solutions for incompressible fluid dynamics

Robert Lasarzik

AI总结:

本文提出极大耗散解概念,证明其在等温GENERIC系统及Navier-Stokes和Euler方程中的全局适定性,并在弱解正则性足够时与之重合。

摘要:

我们为一般类型的等温GENERIC系统引入了极大耗散解的新概念。在特定假设下,我们证明只要更大的耗散解类非空,极大耗散解就是适定的。将此结果应用于Navier-Stokes方程和Euler方程,我们推断出这些系统的极大耗散解具有全局适定性。极大耗散解的概念与弱解的概念一致,只要弱解具有足够的正则性以保证唯一性。

英文摘要:

We introduce the new concept of maximal dissipative solutions for a general class of isothermal GENERIC systems. Under certain assumption, we show that maximal dissipative solutions are well posed as long as the bigger class of dissipative solutions is non-empty. Applying this result to the Navier--Stokes and Euler equations, we infer global well-posedness of maximal dissipative solutions for these systems. The concept of maximal dissipative solutions coincides with the concept of weak solutions as long as the weak solutions inherits enough regularity to be unique.

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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