Classification of solutions to $3$-D and $4$-D mixed order conformally invariant systems with critical and exponential growth

Wei Dai, Lixiu Duan, Rong Zhang

In this paper, without any assumption on $v$ and under the extremely mild assumption $u(x)=O(|x{|}^K)$ as $|x|\to +\infty$ for some $K\gg 1$ arbitrarily large, we classify s…