Minimax Theory and its Applications 05 (2020), No. 1, 001--006
Copyright Heldermann Verlag 2020
Erratum to "Quasi-Equilibrium Problems and Fixed Point Theorems of the Sum of l.s.c. and u.s.c. Mappings"
Nguyen Xuan Tan
Institute of Mathematics, 18 Hoang Quoc Viet, 10307 Hanoi, Vietnam
nxtan@math.ac.vn
Nguyen Quynh Hoa
Thai Nguyen University of Economics and Business Administration, Tan Thinh Ward, Thai Nguyen City, Vietnam
hoakhcb@gmail.com
Nguyen Ba Minh
Thoungmai University, Hanoi, Vietnam
baminhnguyen@tmu.edu.vn
The purpose of this note is to correct the proof of Theorem 3.1 in our paper "Quasi-equilibrium problems and fixed point theorems of the sum of l.s.c. and u.s.c. mappings", Minimax Theory and its Applications 3(1) (2018) 57--72. We made a mistake in the use of Sion's Minimax Theorem.
Keywords: Erratum, quasi-equilibrium problem, upper semi-continuous mapping, lower semi-continuous mapping, fixed point theorem.
MSC: 49J27, 49J53, 91B50, 90C48.
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