Minimax theorems for extended real-valued abstract convex-concave functions
The paper under review is concerned with the study of some minimax properties for extended real-valued functions, which are convex with respect to one variable and concave with respect to the second variable. A feature of these results is that they do not need any topological structure on the spaces involved. The analysis developed in this paper covers the case of extended real-valued convex-concave functions which are not proper or lower (upper) semicontinuous.
scientific article; zbMATH DE number 6859629
scientific article