Existence conditions in symmetric multivalued vector quasiequilibrium problems
Lâm Quốc Anh, Phan Quốc Khánh · Control and Cybernetics · 2007
We consider symmetric multivalued vector quasiequi- librium problems in topological vector spaces. Sufficient conditions for the solution existence are established under relaxed assumptions, which are shown by examples to be essential, easy to check and more advantageous than recent known results. Applications to lower and upper bounded quasiequilibrium problems and to coincidence point problems are given.