113 research outputs found

    A best proximity point theorem for special generalized proximal ?-quasi contractive mappings

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    In this paper, we obtain some best proximity point results for a new class of non-self mappings T: A? B called special generalized proximal ?-quasi contractive. Our result is illustrated by an example. Several consequences are derived. - 2019, The Author(s).Scopu

    Generalized Proximal ψ

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    We generalized the notion of proximal contractions of the first and the second kinds and established the best proximity point theorems for these classes. Our results improve and extend recent result of Sadiq Basha (2011) and some authors

    Generalization of best proximity points theorem for non-self proximal contractions of first kind

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    The primary objective of this paper is the study of the generalization of some results given by Basha (Numer. Funct. Anal. Optim. 31:569-576, 2010). We present a new theorem on the existence and uniqueness of best proximity points for proximal ?-quasi-contractive mappings for non-self-mappings S: M? N and T: N? M. Furthermore, as a consequence, we give a new result on the existence and uniqueness of a common fixed point of two self mappings. - 2019, The Author(s).Scopu

    Fixed points of nodal contractions in cone metric spaces

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    Existence of Picard operator and iterated function system

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    [EN] In this paper, we define weak θm− contraction mappings and give a new class of Picard operators for such class of mappings on a complete metric space. Also, we obtain some new results on the existence and uniqueness of attractor for a weak θm− iterated multifunction system. Moreover, we introduce (α, β, θm)− contractions using cyclic (α, β)− admissible mappings and obtain some results for such class of mappings without the continuity of the operator. We also provide an illustrative example to support the concepts and results proved herein.The authors are thankful to the learned referee for valuable suggestions. The second author is also thankful to AISTDF, DST for the research grant vide project No. CRD/2018/000017.Garg, M.; Chandok, S. (2020). Existence of Picard operator and iterated function system. Applied General Topology. 21(1):57-70. https://doi.org/10.4995/agt.2020.11992OJS5770211S. Alizadeh, F. Moradlou and P. Salimi, Some fixed point results for (α, β) − (ψ, φ)- contractive mappings, Filomat 28 (2014), 635-647. https://doi.org/10.2298/FIL1403635AM. F. Barnsley, Fractals Everywhere, Revised with the Assistance of and with a Foreword by Hawley Rising, III. Academic Press Professional, Boston (1993).R. M. T. Bianchini, Su un problema di S. Reich riguardante la teoria dei punti fissi, Boll. Un. Mat. Ital. 5 (1972), 103-108.E. L. Fuster, A. Petrusel and J. C. Yao, Iterated function system and well-posedness, Chaos Sol. Fract. 41 (2009), 1561-1568. https://doi.org/10.1016/j.chaos.2008.06.019R. H. Haghi, Sh. Rezapour and N. Shahzad, Some fixed point generalizations are not real generalizations, Nonlinear Anal. 74 (2011), 1799-1803. https://doi.org/10.1016/j.na.2010.10.052N. Hussain, V. Parvaneh, B. Samet and C. Vetro, Some fixed point theorems for generalized contractive mappings in complete metric spaces, Fixed Point Theory Appl. 2015, 185 (2015). https://doi.org/10.1186/s13663-015-0433-zJ. E. Hutchinson, Fractals and self similarity, Indiana Univ. Math. J. 30, no. 5 (1981), 713-747. https://doi.org/10.1512/iumj.1981.30.30055M. Imdad, W. M. Alfaqih and I. A. Khan, Weak θ−contractions and some fixed point results with applications to fractal theory, Adv. Diff. Eq. 439 (2018). https://doi.org/10.1186/s13662-018-1900-8M. Jleli and B. Samet, A new generalization of the Banach contraction principle, J. Inequal. Appl. 38 (2014). https://doi.org/10.1186/1029-242X-2014-38M. Radenovic and S. Chandok, Simulation type functions and coincidence points, Filomat, 32, no. 1 (2018), 141-147. https://doi.org/10.2298/FIL1801141RB. E. Rhoades, A comparison of various definitions of contractive mappings, Trans. American Math. Soc. 226 (1977), 257-290. https://doi.org/10.1090/S0002-9947-1977-0433430-4I. A. Rus, Picard operators and applications, Sci. Math. Jpn. 58, no. 1 (2003), 191-219.I. A. Rus, A. Petrusel and G. Petrusel, Fixed Point Theory, Cluj University Press, Cluj-Napoca, 2008.N. A. Secelean, Countable Iterated Function Systems, LAP LAMBERT Academic Publishing (2013). https://doi.org/10.1186/1687-1812-2013-277N. A. Secelean, Iterated function systems consisting of F-contractions, Fixed Point Theory Appl. 2013, 277 (2013). https://doi.org/10.1186/1687-1812-2013-277V. M. Sehgal, On fixed and periodic points for a class of mappings, J. London Math. Soc. 5 (1972), 571-576. https://doi.org/10.1112/jlms/s2-5.3.571S.-A. Urziceanu, Alternative charaterizations of AGIFSs having attactors, Fixed Point Theory 20 (2019), 729-740. https://doi.org/10.24193/fpt-ro.2019.2.4

    Best proximity points for proximal contractions

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    In this paper we improve and extend some best proximity point results concerning the so- called proximal contractions. Specifically, compactness assumptions under the sets A and B are removed to consider completeness conditions instead
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