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Existence of Solutions of New Generalized Mixed Vector Variational-Like Inequalities in Reflexive Banach Spaces

Author

Listed:
  • Somyot Plubtieng

    (Naresuan University)

  • Tipphawan Thammathiwat

    (Naresuan University)

Abstract

In this paper, we extend the concept of monotonicity for a vector set-valued mapping to semimonotonicity for a vector set-valued mapping. Then, we prove solvability results for a class of new generalized mixed vector variational-like inequalities by applying the Fan-KKM theorem and Nadler’s result. On the other hand, we introduce the concepts of complete semicontinuity and strong semicontinuity for vector multivalued mappings. Moreover, by using the Brouwer fixed point theorem, we prove the solvability for the class of generalized vector variational-like inequalities without monotonicity assumption. Using this result, we obtain a theorem and corollary that improve and extend some known results.

Suggested Citation

  • Somyot Plubtieng & Tipphawan Thammathiwat, 2014. "Existence of Solutions of New Generalized Mixed Vector Variational-Like Inequalities in Reflexive Banach Spaces," Journal of Optimization Theory and Applications, Springer, vol. 162(2), pages 589-604, August.
    • Handle: RePEc:spr:joptap:v:162:y:2014:i:2:d:10.1007_s10957-013-0322-8
    DOI: 10.1007/s10957-013-0322-8
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    References listed on IDEAS

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    1. Y.P. Fang & N.J. Huang, 2003. "Variational-Like Inequalities with Generalized Monotone Mappings in Banach Spaces," Journal of Optimization Theory and Applications, Springer, vol. 118(2), pages 327-338, August.
    2. Lu-Chuan Ceng & Shuechin Huang, 2010. "Existence theorems for generalized vector variational inequalities with a variable ordering relation," Journal of Global Optimization, Springer, vol. 46(4), pages 521-535, April.
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