A generalization of Kannan's fixed point theorem. Enjouji, Yusuke; Nakanishi, Masato; Suzuki, Tomonari — 2009 Fixed Point Theory and Applications [electronic only]
An observation on Kannan mappings Masato Nakanishi; Tomonari Suzuki — 2010 Open Mathematics In order to observe the condition of Kannan mappings more deeply, we prove a generalization of Kannan’s fixed point theorem.