Ekeland's principle for vector equilibrium problem

Monica Bianchi, Rita Pini, G. Kassay, R. Pini

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

61 Citazioni (Scopus)


In this paper, the authors deal with bifunctions defined on complete metric spaces and with values in locally convex spaces ordered by closed convex cones. The aim is to provide a vector version of Ekeland’s theorem related to equilibrium problems. To prove this principle, a weak notion of continuity of a vectorvalued function is considered, and some of its properties are presented. Via the vector Ekeland’s principle, existence results for vector equilibria are proved in both compact and noncompact domains.
Lingua originaleEnglish
pagine (da-a)1454-1464
Numero di pagine11
Stato di pubblicazionePubblicato - 2007


  • Ekeland's principle
  • quasi lower semicontinuity
  • vector equilibrium problem


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