Yazar "Altun I." için listeleme
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Best proximity point theorems for cyclic p-contractions with some consequences and applications
Aslantas M.; Sahin H.; Altun I. (Vilnius University Press, 2021)In this paper, we introduce the concept of cyclic p-contraction pair for single-valued mappings. Then we present some best proximity point results for such mappings defined on proximally complete pair of subsets of a metric ... -
Classification of completeness of quasi metric space and some fixed point results
In the present paper, considering some different type of Cauchy sequence on a quasi metric space, we classify the completeness of quasi metric spaces. By using some recent techniques we provide new fixed point results on ... -
Common coupled fixed-point theorems in generalized fuzzy metric spaces
Rao K.P.R.; Altun I.; Bindu S.H. (2011)We prove two unique common coupled fixed-point theorems for self maps in symmetric G-fuzzy metric spaces. Copyright © 2011 K. P. R. Rao et al. -
Cyclic ? -contractions on S-complete Hausdorff uniform Spaces
Sedghi S.; Shobkolaei N.; Firouzian S.; Altun I. (University of Kuwait, 2015)In this paper, we apply the concept of cyclic ? -contraction for presenting a fixed point theorem on a Hausdorff uniform space. -
An existence theorem for the common solutions for a pair of integral inclusions
Altun I.; Turkoglu D. (2011)In this paper we prove an existence theorem for the common solutions for a pair of integral inclusions via a common fixed point theorem of Turkoglu et al.[10]. © 2011 Watam Press. -
Fixed point theorem for multivalued mappings satisfying an implicit relation
Turkoglu D.; Altun I. (2008)In this paper, we give a common fixed point theorem for multivalued mappings with Hausdorff metric. -
Fixed point theorem for sequences of maps
Turkoglu D.; Altun I.; Fisher B. (Walter de Gruyter GmbH, 2005)In this paper, we prove a common fixed point theorem for sequences of maps under the condition of compatible mappings on complete metric space. We extend and generalize several fixed point theorems on complete metric space. ... -
Generalized Geraghty type mappings on partial metric spaces and fixed point results
Altun I.; Sadarangani K. (Springer, 2013)In the present paper, we introduce generalized Geraghty (Proc Am Math Soc 40:604–608, 1973) mappings on partial metric spaces and give a fixed point theorem which generalizes some recent results appearing in the literature. ... -
A local fixed point theorem on fuzzy metric spaces
In this paper, we present a common fixed point theorem for multivalued maps on M-complete fuzzy metric spaces. Also, the single valued case and an illustrative example are given. © 2012 The Korean Mathematical Society. -
A new concept of (?, Fd)-contraction on quasi metric space
Altun I.; Al Arifi N.; Jleli M.; Lashin A.; Samet B. (International Scientific Research Publications, 2016)In the present paper, we introduce a new concept of (?, Fd)-contraction on quasi metric space. Then we provide some new fixed point theorems for such type mappings on left K, left M and left Smyth-complete quasi metric ... -
On compatible mappings of type (I) and (II) in intuitionistic fuzzy metric spaces
Alaca C.; Altun I.; Turkoglu D. (Korean Mathematical Society, 2008)In this paper, we give some new definitions of compatible mappings in intuitionistic fuzzy metric spaces and we prove a common fixed point theorem for four mappings under the condition of compatible mappings of type (I) ... -
Some fixed point theorems for multivalued maps satisfying an implicit relation on metrically convex spaces
Altun I.; Turkoglu D. (Kyungpook National University, 2008)In this paper, we give some fixed point theorems for multivalued maps satisfying an implicit relation on metrically convex spaces. Our results extend and generalize some fixed point theorem in the literature. -
Some fixed point theorems for multivalued weakly increasing operators
Altun I.; Turkoglu D. (2013)In this paper, some common fixed point theorems for a pair of multivalued weakly increasing operators in partially ordered metric space and in partially ordered Banach space are proved. -
Some fixed point theorems on fuzzy metric spaces with implicit relations
Altun I.; Turkoglu D. (Korean Mathematical Society, 2008)In this paper, we give some fixed point theorems on fuzzy metric spaces with an implicit relation. Our results extend and generalize some fixed point theorems on complete fuzzy metric spaces by using a new technique. © ... -
Some fixed point theorems on ordered cone metric spaces
In the present work, two fixed point theorems for self maps on ordered cone metric spaces are proved motivated by [7, L. G. Huang and X. Zhang, Cone metric spaces and fixed point theorems of contractive mappings, J. Math. ... -
Some properties of S-metric spaces and fixed point results
Sedghi S.; Altun I.; Shobe N.; Salahshour M.A. (Kyungpook National University, 2014)In this paper, we introduce S-metric spaces and give their some properties. Also we present a common fixed point theorem for multivalued maps on complete S-metric spaces. The single valued case and an illustrative example ... -
Some related fixed point theorems for multivalued mappings on two metric spaces
Biçer Ö.; Olgun M.; Alyildiz T.; Altun I. (Precarpathian National University, 2020)The definition of related mappings was introduced by Fisher in 1981. He proved some theorems about the existence of fixed points of single valued mappings defined on two complete metric spaces and relations between these ... -
A Suzuki type fixed-point theorem
Altun I.; Erduran A. (2011)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). Copyright 2011 ... -
Weak partial metric spaces and some fixed point results
The concept of partial metric p on a nonempty set X was introduced by Matthews [8]. One of the most interesting properties of a partial metric is that p(x, x) may not be zero for x ? X. Also, each partial metric p on a ...