Some generalizations of Ekeland-type var
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S. Al-Homidan; Q.H. Ansari; J.-C. Yao
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Article
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2008
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Elsevier Science
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English
⚖ 353 KB
In this paper, we introduce the concept of a Q-function defined on a quasi-metric space which generalizes the notion of a τ -function and a w-distance. We establish Ekeland-type variational principles in the setting of quasi-metric spaces with a Q-function. We also present an equilibrium version of