Fuzzy Sets and Systems
Fuzzy Sets and Systems
Convexity and local Lipschitz continuity of fuzzy-valued mappings
Fuzzy Sets and Systems
On convex and concave fuzzy mappings
Fuzzy Sets and Systems
A class of convex fuzzy mappings
Fuzzy Sets and Systems
Convex fuzzy mapping and operations of convex fuzzy mappings
Computers & Mathematics with Applications
Continuity and semicontinuity of fuzzy mappings
Computers & Mathematics with Applications
A Characterization of Convex Fuzzy Mappings
International Journal of Artificial Life Research
On properties of convex fuzzy mappings
Fuzzy Sets and Systems
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The convexity and continuity of fuzzy mappings are defined through a linear ordering and a metric on the set of fuzzy numbers. The local-global minimum property of real-valued convex functions is extended to convex fuzzy mappings. It is proved that a strict local minimizer of a quasiconvex fuzzy mapping is also a strict global minimizer. Characterizations for convex fuzzy mappings and quasiconvex fuzzy mappings are given. In addition, the Weirstrass theorem is extended from real-valued functions to fuzzy mappings.