1. Nonlinear two functions minimax theorems;Cheng,1998
2. Two-function minimax theorem involving interval spaces;Cheng;J. Nonlinear Convex Anal.,2001
3. Nonlinear, noncompact minimax theorems;Cheng;Bull. Inst. Math. Acad. Sinica,1996
4. A minimax theorem involving two functions;Cheng;Taiwanese J. Math.,2001
5. Minimax and applications;Cheng;Beijing Math.,1997