Geodesic
Convergence of Ishikawa iterates for a multi-valued mapping with a fixed point
Czechoslovak Mathematical Journal, Tome 55 (2005) no. 4, pp. 817-826.

Voir la notice de l'article provenant de la source Czech Digital Mathematics Library

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.
Classification : 47H04, 47H10, 47J25, 54C60, 54H25
Keywords: multi-valued map; Mann iterates; Ishikawa iterates; fixed points 
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     title = {Convergence of {Ishikawa} iterates for a multi-valued mapping with a fixed point},
     journal = {Czechoslovak Mathematical Journal},
     pages = {817--826},
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     zbl = {1081.47069},
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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. Czechoslovak Mathematical Journal, Tome 55 (2005) no. 4, pp. 817-826. http://geodesic.mathdoc.fr/item/CMJ_2005__55_4_a0/