论文标题
经过改良的表面准晶格方程的长期定位
Long time localization of modified surface quasi-geostrophic equations
论文作者
论文摘要
我们讨论了二维活动标量流的时间演化,该流动量度扩展了一些对二维不可压缩的非粘性流体有效的特性。特别是,当该领域最初集中在$ n $小型区域区域时,我们研究了动态的某些特征,并且我们讨论了该本地化属性时的保护。我们还讨论了这种本地化的持续时间,表明在某些情况下发生了很长时间。
We discuss the time evolution of a two-dimensional active scalar flow, which extends some properties valid for a two-dimensional incompressible nonviscous fluid. In particular we study some characteristics of the dynamics when the field is initially concentrated in $N$ small disjoint regions, and we discuss the conservation in time of this localization property. We discuss also how long this localization persists, showing that in some cases this happens for quite long times.