A generalization of Caristi's fixed point theorem.
Ćirić, Ljubomir B. (1992)
Mathematica Pannonica
Similarity:
Ćirić, Ljubomir B. (1992)
Mathematica Pannonica
Similarity:
Cho, Yeol Je, Park, Keun Saeng, Chang, Shihsen (1996)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Debashis Dey, Mantu Saha (2013)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
Similarity:
In the present paper, we establish a common fixed point theorem for four self-mappings of a complete 2-metric space using the weak commutativity condition and -contraction type condition and then extend the theorem for a class of mappings.
Mohamed Akkouchi (2011)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
Similarity:
In the setting of a b-metric space (see [Czerwik, S.: Contraction mappings in b-metric spaces Acta Math. Inform. Univ. Ostraviensis 1 (1993), 5–11.] and [Czerwik, S.: Nonlinear set-valued contraction mappings in b-metric spaces Atti Sem. Mat. Fis. Univ. Modena 46, 2 (1998), 263–276.]), we establish two general common fixed point theorems for two mappings satisfying the (E.A) condition (see [Aamri, M., El Moutawakil, D.: Some new common fixed point theorems under strict contractive conditions...
Salvador Romaguera, Enrique A. Sánchez-Pérez, Oscar Valero (2003)
Kybernetika
Similarity:
We introduce a new (extended) quasi-metric on the so-called dual p-complexity space, which is suitable to give a quantitative measure of the improvement in complexity obtained when a complexity function is replaced by a more efficient complexity function on all inputs, and show that this distance function has the advantage of possessing rich topological and quasi-metric properties. In particular, its induced topology is Hausdorff and completely regular. Our approach is applied to the...
Liu, Zeqing, Zhang, Fengrong, Mao, Jianfeng (1999)
Bulletin of the Malaysian Mathematical Society. Second Series
Similarity:
Brian Fisher (1981)
Fundamenta Mathematicae
Similarity:
Rashwan, R.A. (1996)
Southwest Journal of Pure and Applied Mathematics [electronic only]
Similarity: