Abstract
In this paper, we introduce the concepts of globally efficient solution and cone-Benson efficient solution for a vector equilibrium problem; we give some scalarization results for Henig efficient solution sets, globally efficient solution sets, weak efficient solution sets, and cone-Benson efficient solution sets in locally convex spaces. Using the scalarization results, we show the connectedness and path connectedness of weak efficient solution sets and various proper efficient solution sets of vector equilibrium problem.
Similar content being viewed by others
References
Ansari, Q.H., Oettli, W., Schläger, D.: A generalization of vector equilibria. Math. Methods Oper. Res. 46, 147–1527 (1997)
Bianchi, M., Hadjisavvas, N., Schaible, S.: Vector equilibrium problems with generalized monotone bifunctions. J. Optim. Theory Appl. 92, 527–542 (1997)
Giannessi, F.: Theorem of the alternative, quadratic programs, and complementarity problems. In: Cottle, R.W., Giannessi, F., Lions, J.L. (eds.) Variational Inequalities and Complementarity Problems, pp. 151–186. Wiley, New York (1980)
Chen, G.Y., Cheng, G.M.: Vector variational inequalities and vector optimization. In: Lecture Notes in Economics and Mathematical Systems, vol. 258, pp. 408–416. Springer, Heidelberg (1987)
Chen, G.Y., Yang, X.Q.: Vector complementarity problem and its equivalence with weak minimal element in ordered spaces. J. Math. Anal. Appl. 153, 136–158 (1990)
Chen, G.Y.: Existence of solution for a vector variational inequality: an extension of the Hartman-Stampacchia theorem. J. Optim. Theory Appl. 74, 445–456 (1992)
Yang, X.Q.: Vector variational inequality and its duality. Nonlinear Anal. Theory Methods Appl. 21, 869–877 (1993)
Siddiqi, A.H., Ansari, Q.H., Khaliq, A.: On vector variational inequalities. J. Optim. Theory Appl. 84, 171–180 (1995)
Chen, G.Y., Li, S.J.: Existence of solution for a generalized vector quasivariational inequality. J. Optim. Theory Appl. 90, 321–334 (1996)
Yu, S.J., Yao, J.C.: On vector variational inequalities. J. Optim. Theory Appl. 89, 749–769 (1996)
Lee, G.M., Lee, B.S., Chang, S.S.: On vector quasivariational inequalities. J. Math. Anal. Appl. 203, 626–638 (1996)
Konnov, I.V., Yao, J.C.: On the generalized vector variational inequality problem. J. Math. Anal. Appl. 206, 42–58 (1997)
Luo, Q.: Generalized vector variational-like inequalities. In: Giannessi, F. (ed.) Vector Variational Inequalities and Vector Equilibria: Mathematical Theories, pp. 363–369. Kluwer, Dordrecht (2000)
Lee, G.M., Kim, D.S., Lee, B.S., Yun, N.D.: Vector variational inequality as a tool for studying vector optimization problems. Nonlinear Anal. Theory Methods Appl. 34, 745–765 (1998)
Cheng, Y.H.: On the connectedness of the solution set for the weak vector variational inequality. J. Math. Anal. Appl. 260, 1–5 (2001)
Gong, X.H.: Efficiency and Henig efficiency for vector equilibrium problems. J. Optim. Theory Appl. 108, 139–154 (2001)
Gong, X.H., Fu, W.T., Liu, W.: Superefficiency for a vector equilibrium in locally convex topological vector spaces. In: Giannessi, F. (ed.) Vector Variational Inequalities and Vector Equilibria: Mathematical Theories, pp. 233–252. Kluwer, Dordrecht (2000)
Fu, J.Y.: Generalized vector quasiequilibrium problems. Math. Methods Oper. Res. 52, 57–64 (2000)
Song, W.: Vector equilibrium problems with set-valued mapping. In: Giannessi, F. (ed.) Vector Variational Inequalities and Vector Equilibria: Mathematical Theories, pp. 403–418. Kluwer, Dordrecht (2000)
Fang, Y.P., Huang, N.J.: Vector equilibrium type problems with (S)+-conditions. Optimization 53, 269–279 (2004)
Chiang, C., Chadli, O., Yao, J.C.: Generalized vector equilibrium problems with trifunctions. J. Glob. Optim. 30, 135–154 (2004)
Ding, X.P., Park, J.Y.: Generalized vector equilibrium problems in generalized convex spaces. J. Optim. Theory Appl. 120, 327–353 (2004)
Lin, L.J., Ansari, Q.H., Wu, J.Y.: Geometric properties and coincidence theorems with applications to generalized vector equilibrium problems. J. Optim. Theory Appl. 117, 121–137 (2003)
Fu, J.Y.: Vector equilibrium problems. Existence theorems and convexity of the solution set. J. Glob. Optim. 31, 109–119 (2005)
Zheng, X.Y.: The domination property for efficiency in locally convex spaces. J. Math. Anal. Appl. 213, 455–467 (1997)
Benson, H.P.: An improved definition of proper efficiency for vector maximization with respect to cones. J. Math. Anal. Appl. 71, 232–241 (1979)
Henig, M.I.: Proper efficiency with respect to cones. J. Optim. Theory Appl. 36, 387–407 (1982)
Borwein, J.M., Zhuang, D.M.: Superefficiency in vector optimization. Trans. Am. Math. Soc. 338, 105–122 (1993)
Baiocchi, C., Capelo, A.: Variational and Quasivariational Inequalities. Wiley, New York (1984)
Aubin, J.P., Ekeland, I.: Applied Nonlinear Analysis. Wiley, New York (1984)
Warburton, A.R.: Quasiconcave vector maximization: connectedness of the sets of Pareto-optimal and weak Pareto-optimal alternatives. J. Optim. Theory Appl. 40, 537–557 (1983)
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by H.P. Benson.
This research was partially supported by the National Natural Science Foundation of China and the Natural Science Foundation of Jinxing Province, China.
Rights and permissions
About this article
Cite this article
Gong, X.H. Connectedness of the Solution Sets and Scalarization for Vector Equilibrium Problems. J Optim Theory Appl 133, 151–161 (2007). https://doi.org/10.1007/s10957-007-9196-y
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10957-007-9196-y