Browsing by Author "Bota, Monica-Felicia"
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Article Citation Count: 218A fixed point theorem for set-valued quasi-contractions in b-metric spaces(Springer international Publishing Ag, 2012) Karapınar, Erdal; Bota, Monica-Felicia; Karapinar, Erdal; Mitrovic, Slobodanka; MathematicsIn this article, we give a fixed point theorem for set-valued quasi-contraction maps in b-metric spaces. This theorem extends, unifies and generalizes several well known comparable results in the existing literature.Article Citation Count: 45Fixed point theorems for generalized (α* - ψ)-Ciric-type contractive multivalued operators in b-metric spaces(int Scientific Research Publications, 2016) Karapınar, Erdal; Chifu, Cristian; Karapinar, Erdal; MathematicsIn this paper we introduce the notion (alpha(*) - psi)- Ciric-type contractive multivalued operator and investigate the existence and uniqueness of fixed point for such a mapping in b-metric spaces. The well-posedness of the fixed point problem and the Ulam-Hyres stability is also studied. (C) 2016 All rights reserved.Article Citation Count: 42A note on "Some results on multi-valued weakly Jungck mappings in b-metric space"(versita, 2013) Karapınar, Erdal; Karapinar, Erdal; MathematicsThe proofs of Theorems 2.1, 2.2 and 2.3 from [Olatinwo M.O., Some results on multi-valued weakly jungck mappings in b-metric space, Cent. Eur. J. Math., 2008, 6(4), 610-621] base on faulty evaluations. We give here correct but weaker versions of these theorems.Article Citation Count: 70Ulam-Hyers Stability Results for Fixed Point Problems via α-ψ-Contractive Mapping in (b)-Metric Space(Hindawi Ltd, 2013) Karapınar, Erdal; Karapinar, Erdal; Mlesnite, Oana; MathematicsWe will investigate some existence, uniqueness, and Ulam-Hyers stability results for fixed point problems via alpha-psi-contractive mapping of type-(b) in the framework of b-metric spaces. The presented theorems extend, generalize, and unify several results in the literature, involving the results of Samet et al. (2012).