On a fixed point theorem of Greguš.
Fisher, Brian, Sessa, Salvatore (1986)
International Journal of Mathematics and Mathematical Sciences
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Displaying similar documents to “Weak contractions, common fixed points, and invariant approximations.”
On a fixed point theorem of Greguš.
Invariant approximations, generalized -contractions, and -subweakly commuting maps.
Shahzad, Naseer (2005)
Fixed Point Theory and Applications [electronic only]
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Common fixed point and invariant approximation results in certain metrizable topological vector spaces.
Hussain, Nawab, Berinde, Vasile (2006)
Fixed Point Theory and Applications [electronic only]
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-commuting maps and invariant approximations.
Hussain, N., Rhoades, B.E. (2006)
Fixed Point Theory and Applications [electronic only]
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Common fixed point and approximation results for noncommuting maps on locally convex spaces.
Akbar, F., Khan, A.R. (2009)
Fixed Point Theory and Applications [electronic only]
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Coincidence and invariant approximation theorems for generalized -nonexpansive multivalued mappings.
Khan, A.R., Akbar, F., Sultana, N., Hussain, N. (2006)
International Journal of Mathematics and Mathematical Sciences
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Some fixed point theorems for compatible maps.
Jungck, G., Rhoades, B.E. (1993)
International Journal of Mathematics and Mathematical Sciences
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An application of fixed point theorems in best approximation theory.
Pathak, H.K., Cho, Y.J., Kang, S.M. (1998)
International Journal of Mathematics and Mathematical Sciences
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A new class of nonexpansive type mappings and fixed points
Ljubomir B. Ćirić (1999)
Czechoslovak Mathematical Journal
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In this paper a new class of self-mappings on metric spaces, which satisfy the nonexpensive type condition (3) below is introduced and investigated. The main result is that such mappings have a unique fixed point. Also, a remetrization theorem, which is converse to Banach contraction principle is given.
A common fixed point theorem of weakly commuting mappings.
Popa, Valeriu (1990)
Publications de l'Institut Mathématique. Nouvelle Série
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Coincidence and fixed point theorems for nonlinear hybrid generalized contractions
H. K. Pathak, Shin Min Kang, Yeol Je Cho (1998)
Czechoslovak Mathematical Journal
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In this paper we first prove some coincidence and fixed point theorems for nonlinear hybrid generalized contractions on metric spaces. Secondly, using the concept of an asymptotically regular sequence, we give some fixed point theorems for Kannan type multi-valued mappings on metric spaces. Our main results improve and extend several known results proved by other authors.