论文标题
关于无标志障碍问题的单数集的注释
A note on the singular set of the no-sign obstacle problem
论文作者
论文摘要
在此注意中，我们证明了在无符号障碍问题的单数点上的爆炸的独特性149] {PSU12}。
In this note, we prove the uniqueness of blowups at singular points of the no-sign obstacle problem $Δu=χ_{_{B_1\backslash \{u=|Du|=0\}}}\ \text{in}\ B_1,$ thus give a positive answer to a problem raised in \cite[Notes of Chaper 7, page 149]{PSU12}.
