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» Ekeland's Variational Principle for Set-Valued Functions
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JGO
2011
116views more  JGO 2011»
12 years 10 months ago
On generalized Ekeland's variational principle and equivalent formulations for set-valued mappings
We propose a very weak type of generalized distance called weak τ-function and use it to weaken the assumptions about lower semicontinuity in existing formulations of Ekeland’s ...
Phan Quoc Khanh, D. N. Quy