Critical threshold for global regularity of Euler-Monge-Amp`ere system with radial symmetry

Critical threshold for global regularity of Euler-Monge-Amp`ere system with radial symmetry
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径向对称Euler-Monge-Amp`ere系统全局正则性临界阈值

DOI:
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发表时间:
2021
期刊:
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通讯作者:
Changhui Tan
Changhui Tan
中科院分区:
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文献类型:
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作者:
E. Tadmor;Changhui Tan

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我们研究了Euler-Monge-Amp`Re(EMA)系统的全球良好性。我们在初始配置的空间中获得了尖锐,明确的临界阈值,该阈值可以保证具有径向对称初始数据的EMA系统的整体规律性。结果是使用两种独立方法获得的 - 一种使用Liu&Tadmor的光谱动力学[Comm。数学。物理学228(3):435-466,2002],另一个基于Brenier&Loeper的几何方法[Geom。功能。分析14(6):1182--1218,2004]。结果用漩涡将结果延伸到2D径向EMA。
We study the global wellposedness of the Euler-Monge-Amp`ere (EMA) system. We obtain a sharp, explicit critical threshold in the space of initial configurations which guarantees the global regularity of EMA system with radially symmetric initial data. The result is obtained using two independent approaches -- one using spectral dynamics of Liu&Tadmor [Comm. Math. Physics 228(3):435-466, 2002] and another based on the geometric approach of Brenier&Loeper [Geom. Funct. Analysis 14(6):1182--1218, 2004]. The results are extended to 2D radial EMA with swirl.