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Convergence of Ishikawa Iterates for a Multi-Valued Mapping with a Fixed Point

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Abstract

Existence of fixed points of multivalued mappings that satisfy a certain contractive condition was proved by N. Mizoguchi and W. Takahashi. An alternative proof of this theorem was given by Peter Z. Daffer and H. Kaneko. In the present paper, we give a simple proof of that theorem. Also, we define Mann and Ishikawa iterates for a multivalued map T with a fixed point p and prove that these iterates converge to a fixed point q of T under certain conditions. This fixed point q may be different from p. To illustrate this phenomenon, an example is given.

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Authors and Affiliations

  1. Department of Mathematics, Andhra University, Visakhapatnam, 530 003, India

    K. P. R. Sastry & G. V. R. Babu

Authors
  1. K. P. R. Sastry
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  2. G. V. R. Babu
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Additional information

This work is supported by the U. G. C. Grant No. U4/4997/97-98. G. V. R. Babu thanks the University Grants Commission, India for the financial support.

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Sastry, K.P.R., Babu, G.V.R. Convergence of Ishikawa Iterates for a Multi-Valued Mapping with a Fixed Point. Czech Math J 55, 817–826 (2005). https://doi.org/10.1007/s10587-005-0068-z

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  • DOI: https://doi.org/10.1007/s10587-005-0068-z

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