摘要：We give some generalizations of the B. Fischer fixed point theorem (B. Fisher [7] ) for two mappings on metric spaces by using a function α defined from [0,+∞[ into [0,1[ and satisfies limsup t→t + o α(t) < 1, for all t o ≥ 0. We study also the existence of solutions for a functional equation arising in dynamic programming.
