Applications of Fixed Point Theorems to Generalized Saddle Points of Bifunctions on Chain-Complete Posets

Applications of Fixed Point Theorems to Generalized Saddle Points of Bifunctions on Chain-Complete Posets

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We apply the extensions of the Abian-Brown fixed point theorem for set-valued mappings on chain-complete posets to examine the existence of generalized and extended saddle points of bifunctions majicontrast red defined on posets.We also study the generalized and extended equilibrium problems and the solvability of click here ordered variational inequalities on posets, which are equipped with a partial order relation and have neither an algebraic structure nor a topological structure.