Display Abstract

Title Time-dependent singularities in the Navier-Stokes system

Name Xiaoxin Zheng
Country Peoples Rep of China
Email xiaoxinyeah@163.com
Co-Author(s) Grzegorz Karch
Submit Time 2014-04-14 04:24:23
Session
Special Session 83: Fluid flows in unbounded domains
Contents
We showed that, for a given H\"older continuous curve in $\{(\gamma(t),t)\,:\, t>0\} \subset R^3\times R^+$, there exists a solution to the Navier-Stokes system for an incompressible fluid in $R^3$ which is smooth outside this curve and singular on it. This is a pointwise solution of the system outside the curve, however, as a distributional solution on $R^3\times R^+$, it solves an analogous Navier-Stokes system with a singular force concentrated on the curve.