Orthogonality-preserving transformations on quadratic spaces

Piziak, Robert

Displaying similar documents to “Orthogonality-preserving transformations on quadratic spaces”

A Further Extension of Maps With Non-unique Fixed Points

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On fixed points in a metric space over a Tikhonov semifield.

Nešić, Slobodan Č. (1995)

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Fixed and coincidence points of hybrid mappings

H. K. Pathak, M. S. Khan (2002)

Archivum Mathematicum

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The purpose of this note is to provide a substantial improvement and appreciable generalizations of recent results of Beg and Azam; Pathak, Kang and Cho; Shiau, Tan and Wong; Singh and Mishra.

Two fixed point theorems for generalized contractions with constants in complete metric space

Ovidiu Popescu (2009)

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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.

Fixed points for multivalued mappings and the metric completeness.

Dhompongsa, S., Yingtaweesittikul, H. (2009)

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Assad, Nadim A. (1990)

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Kikkawa, Misako, Suzuki, Tomonari (2008)

Fixed Point Theory and Applications [electronic only]

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Common fixed point theorem for four non-self mappings in cone metric spaces.

Huang, Xianjiu, Zhu, Chuanxi, Wen, Xi (2010)

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On a generalization of a Greguš fixed point theorem

Ljubomir B. Ćirić (2000)

Czechoslovak Mathematical Journal

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Let $C$ be a closed convex subset of a complete convex metric space $X$ . In this paper a class of selfmappings on $C$ , which satisfy the nonexpansive type condition $(2)$ below, is introduced and investigated. The main result is that such mappings have a unique fixed point.