Results 171 to 180 of about 10,611,411 (206)

Some Fixed and Common Fixed Point Theorems in Metric Spaces

Canadian Mathematical Bulletin, 1974
Let (X, d) be a metric space and Ti(i=l, 2) be self mappings of X. The purpose of this paper is to investigate the fixed and common fixed points of Ti, when the pair Ti(i=l, 2) satisfies a condition of the following type:(1)
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Generalized KKM theorems and common fixed point theorems

Nonlinear Analysis: Theory, Methods & Applications, 2011
Let \(Y\) be an arbitrary nonempty set and \(X\) be a nonempty convex set in a vector space. A multivalued mapping \(T:Y\multimap X\) is said to be a generalized \(KKM\)-mapping if for any nonempty finite subset \(\{y_1,\dots,y_n\}\) of \(Y\), there exists a subset \(\{x_1,\dots,x_n\}\) in \(X\) such that \(\text{co}\; \{x_i:i\in I\} \subseteq \bigcup ...
Lin, Lai-Jiu, Chuang, Chih-Sheng, Yu, Zenn-Tsun   +2 more
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A common fixed point theorem for a pair of fuzzy mappings

Fuzzy Sets and Systems, 1998
\textit{S. Heilpern} [J. Math. Anal. Appl. 83, 566-569 (1981; Zbl 0486.54006)] first introduced the concept of fuzzy mappings and proved a fixed-point theorem for fuzzy contraction mappings, which is a fuzzy analogue of the fixed-point theorems for multi-valued mappings [\textit{M.-P. Chen} and \textit{M.-H. Shih}, ibid.
Byung-Soo Lee, Gue Myung Lee, Sung Jin Cho, Do Sang Kim   +3 more
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A common fixed point theorem in uniformizable spaces

Zbornik radova Prirodno-matematičkog fakulteta u Novom Sadu, serija Matematika, 1986
The author presents a fixed point theorem which generalizes a recent result of \textit{O. Hadžić} [ibid. 14, No.1, 1-11 (1984; Zbl 0566.54025)] in uniformizable spaces.
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A common fixed point theorem in a fuzzy metric space

Fuzzy Sets and Systems, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Common fixed point theorems in fuzzy metric spaces

Fuzzy Sets and Systems, 2002
Common fixed point theorems involving six selfmappings of a fuzzy metric space are established under a generalized nonexpansive type condition and other suitable assumptions.
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Some fixed point theorems and common fixed point theorem in log-convex structure

2014
Some fixed point theorems and common fixed point theorem in Logarithmic convex structure areproved.
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Fixed Point Theorem and Common Fixed Point Theorem in Cone Metric Spaces

Journal of Computer and Mathematical Sciences, 2019
Ashfaque Ur Rahman, K. Qureshi, Geeta Modi   +2 more
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Theorems on common fixed points

Fundamenta Mathematicae, 1981
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A common fixed point theorem

Mathematics Seminar Notes, 1974
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