Research article

A counterexample to the new iterative scheme of Rezapour et al.: Some discussions and corrections

  • Received: 08 January 2023 Revised: 04 February 2023 Accepted: 07 February 2023 Published: 16 February 2023
  • MSC : 47H09, 47H10

  • In this paper, we show a counterexample to the new iterative scheme introduced by Rezapour et al. in "A new modified iterative scheme for finding common fixed points in Banach spaces: application in variational inequality problems" [2]. We propose a modified iteration to conclude the convergence result. Moreover, some of our results are established under a weaker assumption.

    Citation: Satit Saejung. A counterexample to the new iterative scheme of Rezapour et al.: Some discussions and corrections[J]. AIMS Mathematics, 2023, 8(4): 9436-9442. doi: 10.3934/math.2023475

    Related Papers:

  • In this paper, we show a counterexample to the new iterative scheme introduced by Rezapour et al. in "A new modified iterative scheme for finding common fixed points in Banach spaces: application in variational inequality problems" [2]. We propose a modified iteration to conclude the convergence result. Moreover, some of our results are established under a weaker assumption.



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    [1] R. Pant, R. Shukla, Approximating fixed points of generalized $\alpha$-nonexpansive mappings in Banach spaces, Numer. Funct. Anal. Optim., 38 (2017), 248–266. https://doi.org/10.1080/01630563.2016.1276075 doi: 10.1080/01630563.2016.1276075
    [2] S. Rezapour, M. Iqbal, A. Batool, S. Etemad, T. Botmart, A new modified iterative scheme for finding common fixed points in Banach spaces: application in variational inequality problems, AIMS Mathematics, 8 (2023), 5980–5997. https://doi.org/10.3934/math.2023301 doi: 10.3934/math.2023301
    [3] R. P. Agarwal, M. Meehan, D. O'Regan, Fixed Point Theory and Applications, Cambridge: Cambridge University Press, 2001. https://doi.org/10.1017/CBO9780511543005
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    [6] Z. Opial, Weak convergence of the sequence of successive approximations for nonexpansive mappings, Bull. Amer. Math. Soc., 73 (1967), 591–597. https://doi.org/10.1090/S0002-9904-1967-11761-0 doi: 10.1090/S0002-9904-1967-11761-0
    [7] J. B. Diaz, F. T. Metcalf, On the structure of the set of subsequential limit points of successive approximations, Bull. Amer. Math. Soc., 73 (1967), 516–519. https://doi.org/10.1090/S0002-9904-1967-11725-7 doi: 10.1090/S0002-9904-1967-11725-7
    [8] G. E. Kim, Weak and strong convergence theorems of quasi-nonexpansive mappings in a Hilbert spaces, J. Optim. Theory Appl., 152 (2012), 727–738. https://doi.org/10.1007/s10957-011-9924-1 doi: 10.1007/s10957-011-9924-1
    [9] J. Schu, Weak and strong convergence to fixed points of asymptotically nonexpansive mappings, Bull. Austral. Math. Soc., 43 (1991), 153–159. https://doi.org/10.1017/S0004972700028884 doi: 10.1017/S0004972700028884
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