Pointwise Contraction Criteria for the Existence of Fixed Points
暂无分享,去创建一个
Abstract We show that, in a complete metric space, every selfmap that is a “weak directional contraction” admits a fixed point.
[1] A pointwise contraction criteria for the existence of fixed points , 1979 .
[2] M. Edelstein,et al. An extension of Banach’s contraction principle , 1961 .
[3] M. Edelstein. On Fixed and Periodic Points Under Contractive Mappings , 1962 .
[4] I. Ekeland. On the variational principle , 1974 .