Geodesic
On the equivalence of certain statements on fixed points of contractions
Funkcionalʹnyj analiz i ego priloženiâ, Tome 51 (2017) no. 4, pp. 92-95.

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It is shown that a series of recent (2012–2016) generalizations of the notion of contraction $F$-contraction, weak $F$-contraction, etc.) in fact reduce to known notions of contraction (due to Browder, Boyd and Wong, Meir and Keeler, etc.).
Keywords: contractive map, generalized contraction, fixed point, iterations. 
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P. V. Semenov. On the equivalence of certain statements on fixed points of contractions. Funkcionalʹnyj analiz i ego priloženiâ, Tome 51 (2017) no. 4, pp. 92-95. http://geodesic.mathdoc.fr/item/FAA_2017_51_4_a10/

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