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匹配条件： “Ishak Altun” ，找到相关结果约622条。
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A Suzuki Type Fixed-Point Theorem
Ishak Altun,Ali Erduran
International Journal of Mathematics and Mathematical Sciences , 2011, DOI: 10.1155/2011/736063
Abstract: We present a fixed-point theorem for a single-valued map in a complete metric space using implicit relation, which is a generalization of several previously stated results including that of Suziki (2008).
Fixed point theorem for multivalued mappings satisfying an implicit relation
Duran Turkoglu,Ishak Altun
Tamkang Journal of Mathematics , 2008, DOI: 10.5556/j.tkjm.39.2008.247-254
Abstract: In this paper, we give a common fixed point theorem for multivalued mappings with Hausdorff metric.
CHARACTERIZATIONS OF PARTIAL METRIC COMPLETENESS IN TERMS OF WEAKLY CONTRACTIVE MAPPINGS HAVING FIXED POINT
Ishak Altun,Salvador Romaguera
Applicable Analysis and Discrete Mathematics , 2012, DOI: 10.2298/aadm120322009a
Abstract: We characterize both complete and 0-complete partial metric spaces in terms of weakly contractive mappings having a fixed point. Our results extend a well-known characterization of metric completeness due to Suzuki and Takahashi to the partial metric framework.
Fixed Point Theorems for Monotone Mappings on Partial Metric Spaces
Ishak Altun,Ali Erduran
Fixed Point Theory and Applications , 2011, DOI: 10.1155/2011/508730
Abstract:
Ordered Non-Archimedean Fuzzy Metric Spaces and Some Fixed Point Results
Altun Ishak,Mihe？ Dorel
Fixed Point Theory and Applications , 2010,
Abstract: In the present paper we provide two different kinds of fixed point theorems on ordered nonArchimedean fuzzy metric spaces. First, two fixed point theorems are proved for fuzzy order -contractive type mappings. Then a common fixed point theorem is given for noncontractive type mappings. Kirk's problem on an extension of Caristi's theorem is also discussed.
Some Fixed Point Theorems on Ordered Metric Spaces and Application
Altun Ishak,Simsek Hakan
Fixed Point Theory and Applications , 2010,
Abstract: We present some fixed point results for nondecreasing and weakly increasing operators in a partially ordered metric space using implicit relations. Also we give an existence theorem for common solution of two integral equations.
Fixed Point Theorems for Generalized Weakly Contractive Condition in Ordered Metric Spaces
Nashine HemantKumar,Altun Ishak
Fixed Point Theory and Applications , 2011,
Abstract: Fixed point results with the concept of generalized weakly contractive conditions in complete ordered metric spaces are derived. These results generalize the existing fixed point results in the literature.
Fixed Point Theorems for Monotone Mappings on Partial Metric Spaces
Altun Ishak,Erduran Ali
Fixed Point Theory and Applications , 2011,
Abstract: Matthews (1994) introduced a new distance on a nonempty set , which is called partial metric. If is a partial metric space, then may not be zero for . In the present paper, we give some fixed point results on these interesting spaces.
Some Fixed Point Theorems on Ordered Metric Spaces and Application
Ishak Altun,Hakan Simsek
Fixed Point Theory and Applications , 2010, DOI: 10.1155/2010/621469
Abstract: We present some fixed point results for nondecreasing and weakly increasing operators in a partially ordered metric space using implicit relations. Also we give an existence theorem for common solution of two integral equations.
Ordered Non-Archimedean Fuzzy Metric Spaces and Some Fixed Point Results
Ishak Altun,Dorel Miheţ
Fixed Point Theory and Applications , 2010, DOI: 10.1155/2010/782680
Abstract: In the present paper we provide two different kinds of fixed point theorems on ordered nonArchimedean fuzzy metric spaces. First, two fixed point theorems are proved for fuzzy order ψ-contractive type mappings. Then a common fixed point theorem is given for noncontractive type mappings. Kirk's problem on an extension of Caristi's theorem is also discussed.
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