Yazar "Durmaz, Gonca" için listeleme
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Fixed Point Results for α-ψ-Contractive Mappings Including Almost Contractions and Applications
Durmaz, Gonca; Minak, Gulhan; Altun, Ishak (Hindawi Publishing Corp, 2014)In the recent paper (B. Samet, C. Vetro, and P. Vetro, Fixed point theorems for alpha-psi-contractive type mappings, Nonlinear Analysis. Theory, Methods and Applications, 75 (2012), 2154-2165.), the authors introduced the ... -
A Fixed Point Theorem for New Type Contractions on Weak Partial Metric Spaces
Acar, Ozlem; Altun, Ishak; Durmaz, Gonca (Springer Singapore Pte Ltd, 2015)Recently, Karapinar and Romaguera (Filomat 27: 1305-1314, 2013) have introduced a new type contraction on partial metric spaces, and they have obtained a nonunique fixed point result. Then Romaguera (Math. Sci. Appl. E-Notes ... -
Fixed points of ordered F-contractions
Durmaz, Gonca; Minak, Gulhan; Altun, Ishak (Hacettepe Univ, Fac Sci, 2016)In his recent paper, Wardowski [16] introduced the concept of F-contraction, which is a proper generalization of ordinary contraction on a complete metric space. Then, some generalizations of F-contractions including ... -
Multivalued Almost F-contractions on Complete Metric Spaces
Altun, Ishak; Durmaz, Gonca; Minak, Gulhan; Romaguera, Salvador (Univ Nis, Fac Sci Math, 2016)In the present paper, considering a new concept of multivalued almost F-contraction, we give a general class of multivalued weakly Picard operators on complete metric spaces. Also, we give some illustrative examples showing ... -
A New Perspective For Multivalued Weakly Picard Operators
Durmaz, Gonca; Altun, Ishak (Publications L Institut Mathematique Matematicki, 2017)This research contains some recent developments about multivalued weakly Picard operators on complete metric spaces. In addition, taking into account both multivalued theta-contraction and almost contraction on complete ... -
On Nonlinear Set-Valued theta-Contractions
Durmaz, Gonca; Altun, Ishak (MALAYSIAN MATHEMATICAL SCIENCES SOC, 2020)In this paper, we introduce and study new fixed point results for nonlinear set-valued theta-contractions. Our results are based on a new approach, which is called set-valued theta-contraction and they extend and generalize ... -
P-Contractive Mappings On Metric Spaces
Altun, Ishak; Durmaz, Gonca; Olgun, Murat (Mathematical Research Press-Math Res, 2018)In the present paper, we introduce a new concept of P-contractive mappings on metric spaces. We prove that every ordinary contractive mapping is also P-contractive but the converse may not be true in general. We provide ... -
Some fixed point results on weak partial metric spaces
Durmaz, Gonca; Acar, Ozlem; Altun, Ishak (Univ Nis, Fac Sci Math, 2013)The concept of partial metric p on a nonempty set X was introduced by Matthews [13] and it was slightly modified by Heckmann [11] as weak partial metric. In [12], the authors studied fixed point result of new extension of ... -
Sıralı koni metrik uzaylarda sabit nokta teoremleri
Durmaz, Gonca (Kırıkkale Üniversitesi, 2010)Bu tez çalışmasında sıralı koni metrik uzay üzerinde bazı sabit nokta teoremleri incelenmiştir. İlk olarak sabit nokta teorisi ile ilgili ön bilgiler, bazı temel tanım ve teoremler verilmiştir. İkinci olarak sıralı metrik ... -
Zayıf kısmi metrik uzayda bazı sabit nokta teoremleri
Durmaz, Gonca (Kırıkkale Üniversitesi, 2015)Bu tez çalışmasının giriş bölümünde, gündelik yaşam, matematik ve sabit nokta teori arasındaki ilişki hakkında bir bilgi verilmiştir. Ardından, materyal ve yöntem bölümünde, tez içerisinde yararlanılacak kısmi metrik uzay ...