Fixed degree for fuzzy mappings and a generalization of Ky Fan's theorem
Fuzzy Sets and Systems
Fixed point theorems for multivalued mappings in some classes of fuzzy metic spaces
Fuzzy Sets and Systems
A note on fixed point theorems of Hadzˇi´c
Fuzzy Sets and Systems
A fixed point theorem for contractive-type fuzzy mappings
Fuzzy Sets and Systems
Fixed degree and fixed point theorems for fuzzy mappings in probabilistic metric spaces
Fuzzy Sets and Systems
Fixed point theorems for multivalued mappings in probabilistic metric spaces
Fuzzy Sets and Systems
Generalization of shadows and fixed point theorems for fuzzy sets
Fuzzy Sets and Systems
Fuzzy contractive maps and fuzzy fixed points
Fuzzy Sets and Systems
Fixed point theorems for fuzzy mappings in complete metric spaces
Fuzzy Sets and Systems
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In this paper, we establish a new common fixed degree theorem for a sequence of fuzzy mappings in Menger PM-spaces. As an immediate consequence of this theorem, we obtain an improvement of a corresponding result of Chang et al. (Fuzzy Sets and Systems 87 (1997) 325-334). In addition, we also obtain some fixed degree and fixed point theorems for fuzzy mappings in fuzzy metric spaces. Our results unify and generalize the results of Heilpern (J. Math. Anal. Appl. 83 (1981) 566-569), Butnariu (Fuzzy Sets and Systems 7 (1982) 191-207), Hadzic (Fuzzy Sets and Systems 29 (1989) 115-125), Fang (Fuzzy Sets and Systems 48 (1992) 391-395), Lee et al. (Fuzzy Sets and Systems 61 (1994) 309-312; J. Fuzzy Math. 2 (1994) 859-870) and Chang et al. (Math. Japon. 40 (1994) 289-293; Fuzzy Sets and Systems 87 (1997) 325-334).