The study of the existence of solutions of equilibrium problems on unbounded domains involves usually the same sufficient assumptions as for bounded domains together with a coercivity condition. We focus on two different conditions: the first is obtained assuming the existence of a bounded set such that no elements outside is a candidate for a solution; the second allows the solution set to be unbounded. Our results exploit the generalized monotonicity properties of the function f defining the equilibrium problem. It turns out that, in both the pseudomonotone and the quasimonotone setting, an equivalence can be stated between the nonemptyness and boundedness of the solution set and these coercivity conditions. In the pseudomonotone case, we compare our coercivity conditions with various coercivity conditions that appeared in the literature.

Bianchi, M., Pini, R. (2005). Coercivity conditions for equilibrium problems. JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, 124(1), 79-92 [10.1007/s10957-004-6466-9].

Coercivity conditions for equilibrium problems

PINI, RITA
2005

Abstract

The study of the existence of solutions of equilibrium problems on unbounded domains involves usually the same sufficient assumptions as for bounded domains together with a coercivity condition. We focus on two different conditions: the first is obtained assuming the existence of a bounded set such that no elements outside is a candidate for a solution; the second allows the solution set to be unbounded. Our results exploit the generalized monotonicity properties of the function f defining the equilibrium problem. It turns out that, in both the pseudomonotone and the quasimonotone setting, an equivalence can be stated between the nonemptyness and boundedness of the solution set and these coercivity conditions. In the pseudomonotone case, we compare our coercivity conditions with various coercivity conditions that appeared in the literature.
Articolo in rivista - Articolo scientifico
Equilibrium problem,generalized monotonicity, generalized convexity, coercivity conditions
English
gen-2005
124
1
79
92
none
Bianchi, M., Pini, R. (2005). Coercivity conditions for equilibrium problems. JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, 124(1), 79-92 [10.1007/s10957-004-6466-9].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/250
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