机译:一类拟线性椭圆系统的正径向解的存在性
Department of Applied Math., Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
Department of Applied Math., Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
Quasilinear elliptic systems; positive radial solutions; blow up argument; degree theory;