On the proximal point method for equilibrium problems in Hilbert spaces

被引:83
|
作者
Iusem, Alfredo N. [2 ]
Sosa, Wilfredo [1 ]
机构
[1] Univ Nacl Ingn, Inst Matemat & Ciencias Afines, Lima, Peru
[2] Inst Matematica Pura & Aplicada, BR-22460320 Rio De Janeiro, Brazil
关键词
equilibrium problems; convex feasibility problems; variational inequalities; convex optimization; ALGORITHM; CONVERGENCE; EXISTENCE;
D O I
10.1080/02331931003603133
中图分类号
C93 [管理学]; O22 [运筹学];
学科分类号
070105 ; 12 ; 1201 ; 1202 ; 120202 ;
摘要
We analyse a proximal point method for equilibrium problems in Hilbert spaces, improving upon previously known convergence results. We prove global weak convergence of the generated sequence to a solution of the problem, assuming existence of solutions and rather mild monotonicity properties of the bifunction which defines the equilibrium problem, and we establish existence of solutions of the proximal subproblems. We also present a new reformulation of equilibrium problems as variational inequalities ones.
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页码:1259 / 1274
页数:16
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