On some generalizations of Ekeland's variational principle and fixed point theorems in quasi-partial metric spaces

Mongkolkeha, Chirasak / Tanaka, Tamaki / Kumam, Poom | British Library Online Contents | 2017

Minimal element theorems and Ekeland's variational principle with new set order relations

Ansari, Qamrul Hasan / Sharma, Pradeep Kumar / Yao, Jen-Chih | British Library Online Contents | 2018

Characterization of Approximately Efficient Solutions to Multiobjective Location Problems Using Ekeland's Variational Principle

Wanka, G. / Euro Working Group on Locational Analysis | British Library Conference Proceedings | 1996

Minimal element theorems and Ekeland's principle with set relations

Hamel, A. / Lohne, A. | British Library Online Contents | 2006

An Alternative Variational Principle for Geodesics of a Randers Metric

Masiello, A. | British Library Online Contents | 2009