Geodesic
Brondsted order in a metric space and generalizations of Caristi theorem
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 5 (2017), pp. 21-25 
T. N. Fomenko. Brondsted order in a metric space and generalizations of Caristi theorem. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 5 (2017), pp. 21-25. http://geodesic.mathdoc.fr/item/VMUMM_2017_5_a2/
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     title = {Brondsted order in a metric space and generalizations of {Caristi} theorem},
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Voir la notice de l'article provenant de la source Math-Net.Ru

Fixed point and coincidence theorems for mappings of ordered sets, as well as their metric counterparts generalizing the well-known Caristi's fixed point theorem are presented.

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