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
复制标题
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:
影响因子:
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通讯作者:
Changhui Tan
中科院分区:
文献类型:
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作者:
E. Tadmor;Changhui Tan
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.