Exact penalty functions in constrained optimization
SIAM Journal on Control and Optimization
Mathematical Programming: Series A and B
SIAM Journal on Optimization
Gap Functions for Equilibrium Problems
Journal of Global Optimization
An algorithm based on the generalized D-gap function for equilibrium problems
Journal of Computational and Applied Mathematics
Computational Optimization and Applications
Descent methods for equilibriumproblems in a Banach space
Computers & Mathematics with Applications
Descent methods for monotone equilibrium problems in Banach spaces
Journal of Computational and Applied Mathematics
Modified descent methods for solving the monotone variational inequality problem
Operations Research Letters
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The paper deals with equilibrium problems (EPs) with nonlinear convex constraints. First, EP is reformulated as a global optimization problem introducing a class of gap functions, in which the feasible set of EP is replaced by a polyhedral approximation. Then, an algorithm is given for solving EP through a descent type procedure, which exploits also exact penalty functions, and its global convergence is proved. Finally, the algorithm is tested on a network oligopoly problem with nonlinear congestion constraints.