arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1902.08600math.AP
收藏

具有自由表面边界的可压缩自引力液体运动的局部适定性

Local well-posedness for the motion of a compressible, self-gravitating liquid with free surface boundary

Daniel Ginsberg, Hans Lindblad, Chenyun Luo

摘要:

建立了描述液体在牛顿自引力作用下运动的可压缩Euler方程组的自由边界问题的局部适定性。我们这样做是通过解决一个切向平滑版本的欧拉方程在拉格朗日坐标满足均匀的能量估计的平滑参数为零。主要的技术工具是精细的能量估计和最佳椭圆估计的边界正则性,狄利克雷问题和格林函数。

英文摘要:

We establish the local well-posedness for the free boundary problem for the compressible Euler equations describing the motion of liquid under the influence of Newtonian self-gravity. We do this by solving a tangentially-smoothed version of Euler's equations in Lagrangian coordinates which satisfies uniform energy estimates as the smoothing parameter goes to zero. The main technical tools are delicate energy estimates and optimal elliptic estimates in terms of boundary regularity, for the Dirichlet problem and Green's function.

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。

↑