On Ekeland's Variational Principle and a
โ
Zhong Cheng-Kui
๐
Article
๐
1997
๐
Elsevier Science
๐
English
โ 141 KB
## IN HONOR OF KY FAN Ekeland's variational principle states that if a Gateaux differentiable ลฝ . function f has a finite lower bound although it need not attain it , then 5 X ลฝ .5 for every โ ) 0, there exists some point x such that f x F โ. This โ โ ลฝ . ลฝ .