本文研究Carnot群上一类退化半线性抛物型不等方程的Liouville型定理,将Fujita和Kartsatos-Kurta经典的关于欧氏空间上相应方程的非平凡解的不存在性结果推广到Carnot群上。通过建立一个先验不等式,本文还证明了无界子域上的Liouville型定理。
The purpose of this paper is to obtain some Liouville type theorems for a class of degenerate semilinear parabolic inequalities, which extend the well-known results of Fujita and Kartsatos-Kurta from the Euclidean space to the Carnot group. By establishing a prior inequality, we also give some Liouville type results in unbounded subdomains.