An extension of Gregus fixed point theorem.
Olaleru, J.O., Akewe, H. (2007)
Fixed Point Theory and Applications [electronic only]
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Displaying similar documents to “A counterexample to “An extension of Gregus fixed point theorem”.”
An extension of Gregus fixed point theorem.
On a generalization of a Greguš fixed point theorem
Ljubomir B. Ćirić (2000)
Czechoslovak Mathematical Journal
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Let be a closed convex subset of a complete convex metric space . In this paper a class of selfmappings on , which satisfy the nonexpansive type condition below, is introduced and investigated. The main result is that such mappings have a unique fixed point.
Two fixed point theorems for generalized contractions with constants in complete metric space
Ovidiu Popescu (2009)
Open Mathematics
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In this paper we prove two fixed point theorems for generalized contractions with constants in complete metric space, which are generalizations of very recent results of Kikkawa and Suzuki.
Some similarity between contractions and Kannan mappings.
Kikkawa, Misako, Suzuki, Tomonari (2008)
Fixed Point Theory and Applications [electronic only]
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A Further Extension of Maps With Non-unique Fixed Points
Ljubomir Ćirić, Nikola Jotić (1998)
Matematički Vesnik
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A fixed point theorem in Banach space.
Assad, Nadim A. (1990)
Publications de l'Institut Mathématique. Nouvelle Série
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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.
Remarks on a fixed-point theorem of Gerald Jungck.
Singh, Maibam Ranjit (1990)
International Journal of Mathematics and Mathematical Sciences
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