... generalized pseudodistances and τ-distances of Suzuki 32, τ-functions of Lin and Du 33 and distances of V´alyi 34.By Remarks 6.5 and 6.6 and Definitions 6.3, 6.7 , 6.9 ,and6 .10, the following ... CorporationFixed Point Theory and ApplicationsVolume 2010, Article ID 175453, 35 pagesdoi:10.1155/2010/175453Research Article Maximality Principle and General Results of Ekeland and Caristi Types without ... 4.4 and 4.6, and Definition 4.7, we see that weestablished, in particular, the variational principle of Ekeland type for not necessarily lscfamilies Ω and endpoint and fixed point theorem of Caristi...