Center for Applied Mathematics, Tianjin University;
School of Sciences, Tianjin Chengjian University;
School of Mathematical Sciences and LPMC, Nankai University;
School of Sciences, Tianjin University of Technology and Education;
poisson方程; 非齐次; Schrodinger; Ekeland变分原理; 多解; 解的存在性; 临界点理论; 定理证明;