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On compatible mappings satisfying an implicit relation in common fixed point consideration. (English) Zbl 1029.47037
The authors prove a common fixed point theorem for four mappings in a Banach space satisfying a complicated relation. There is, unfortunately, no indication why this should be interesting.

##### MSC:
 47H10 Fixed-point theorems 54H25 Fixed-point and coincidence theorems (topological aspects)
##### Keywords:
common fixed point theorem; Banach space