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Öğe Common fixed point of mappings satisfying almost generalized (S,T)-contractive condition in partially ordered partial metric spaces(Elsevier Science Inc, 2012) Shobkolaei, N.; Sedghi, S.; Roshan, J. R.; Altun, I.In this paper, we present the concept of almost generalized (S,T)-contractive condition, and combine this idea with the concept of partial metric and prove some common fixed point results in such spaces. An example is presented to verify the effectiveness and applicability of our main result. (C) 2012 Elsevier Inc. All rights reserved.Öğe Common Fixed Point Theorems for four mappings in d* Metric spaces(Chiang Mai Univ, Fac Science, 2009) Sedghi, S.; Altun, I.; Shobe, N.In this paper, we introduce the concept of d* metric space and prove some common fixed point theorems for four maps in d* metric spaces. These theorems are version of some known results in ordinary metric spaces.Öğe Fixed Point Results For α-Admissible Multivalued F -Contractions(Univ Miskolc Inst Math, 2016) Durmaz, G.; Altun, I.In this study, we give some fixed point results for multivalued mappings using Pompeiu-Hausdorff distance on complete metric space. For this, we consider the alpha-admissibility of multivalued mappings. Our results are real generalizations of Mizoguchi-Takahashi fixed point theorem. We also provide an example showing this fact. Finally, we obtain some ordered fixed point results for multivalued mappings.Öğe A fixed point theorem for multi-maps satisfying an implicit relation on metric spaces(Univ Belgrade, Fac Electrical Engineering, 2008) Sedghi, S.; Altun, I.; Shobe, N.We present a fixed point theorem for multi-valued mapping satisfying an implicit relation on metric spaces.Öğe Fixed Point Theorems for Weakly Contractive Mapping on G-Metric Spaces and a Homotopy Result(Semnan Univ, 2012) Erduran, A.; Altun, I.In this paper, we give some fixed point theorems for phi-weak contractive type mappings on complete G-metric space, which was given by Zaed and Sims [1]. Also a homotopy result is given.Öğe Fixed-Point Theorems for Integral-Type Contractions on Partial Metric Spaces(Springer, 2016) Sabetghadam, F.; Masiha, H. P.; Altun, I.We present some fixed-point results for single-valued mappings on partial metric spaces satisfying a contractive condition of integral type.Öğe Generalized contractions on partial metric spaces (vol 157, pg 2778, 2010)(Elsevier Science Bv, 2011) Altun, I.; Sadarangani, K.We correct the proof of Theorem 1 in the paper in the title. (C) 2010 Elsevier B.V. All rights reserved.Öğe A New Approach to Caristi's Fixed Point Theorem on Non-Archimedean Fuzzy Metric Spaces(Univ Sistan & Baluchestan, 2015) Sedghi, S.; Shobkolaei, N.; Altun, I.In the present paper, we give a new approach to Caristi's fixed point theorem on non-Archimedean fuzzy metric spaces. For this we define an ordinary metric d using the non-Archimedean fuzzy metric M on a nonempty set X and we establish some relationship between (X, d) and (X, M, *). Hence, we prove our result by considering the original Caristi's fixed point theorem.Öğe On A General Class Of Weakly Picard Operators(Univ Miskolc Inst Math, 2015) Altun, I.; Hancer, H. A.; Minak, G.In this paper we show that on complete metric spaces the class of weakly Picard operators contains some operators which are more general than the class of almost contractions.Öğe Some fixed point results for multivalued F-contractions on quasi metric spaces(Springer-Verlag Italia Srl, 2017) Dag, H.; Minak, G.; Altun, I.In the present paper, taking into account recent conractive technique, which is called F-contraction, we provide some new fixed point results for multivalued mapping on some kind of complete quasi metric spaces.Öğe Some fixed point theorems for maps with fuzzy distance in uniform space(Springer, 2013) Shobkolaei, N.; Sedghi, S.; Altun, I.The purpose of this paper is to define the notion of fuzzy A-distance in uniform spaces and give several new common fixed point results for weakly compatible contractive or expansive selfmappings on uniform spaces.Öğe Some fixed point theorems for single and multi valued mappings on ordered non-Archimedean fuzzy metric spaces(Univ Sistan & Baluchistan, 2010) Altun, I.In the present paper, a. partial order on a non- Archimedean fuzzy metric, space under the Lukasiewicz t-norm is introduced and fixed point theorem's for single and multivalued mappings are proved.Öğe Suzuki Type Fixed Point Result for Rational theta-Contraction on Complete Metric Spaces(Southeast Asian Mathematical Soc-Seams, 2019) Durmaz, G.; Minak, G.; Altun, I.In this paper, we present a new approach to fixed point theorems for single valued contraction mappings defined on complete metric spaces. We introduce a new concept called Suzuki type rational theta*-contraction and prove fixed point result for such mappings. Also, we give some examples showing that our result is a real generalization of some existing results.Öğe Weak partial metric spaces and some fixed point results(Univ Politecnica Valencia, Editorial Upv, 2012) Altun, I.; Durniaz, C.The concept of partial metric p on a nonempty set X was Introduced by Matt hews [8]. One of the most interesting properties of a partial metric is that p(x, x) may not be zero for x epsilon X. Also, each partial metric p on a nonempty set X generates a To topology on X. By omitting the small self-distance axiom of partial metric, Heckmann [7] defined the weak partial metric space. In the present paper, we give some fixed point results on weak partial metric spaces.
