quasiconcave
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Quasiconvex function — In mathematics, a quasiconvex function is a real valued function defined on an interval or on a convex subset of a real vector space such that the inverse image of any set of the form ( infty,a) is a convex set. Definition and… … Wikipedia
Concave function — In mathematics, a concave function is the negative of a convex function. A concave function is also synonymously called concave downwards, concave down, convex upwards, convex cap or upper convex. Contents 1 Definition 2 Properties 3 Examples … Wikipedia
Maximum theorem — The maximum theorem provides conditions for the continuity of an optimized function and the set of its maximizers as a parameter changes. The statement was first proven by Claude Berge in 1959[1]. The theorem is primarily used in mathematical… … Wikipedia
Quasikonvexe Funktion — Eine quasikonvexe Funktion, die nicht konvex ist. Eine Fu … Deutsch Wikipedia
Gérard Debreu — Walrasian economics Born July 4, 1921(1921 07 04) Calais … Wikipedia
Sion's minimax theorem — In mathematics, and in particular game theory, Sion s minimax theorem is a generalization of John Von Neumann s minimax theorem.It states:Let X be a compact convex subset of a linear topological space and Y a convex subset of a linear topological … Wikipedia
Debreu — Gérard Debreu Gérard Debreu Gérard Debreu (Calais, 4 juillet 1921 – Paris, 31 décembre 2004 (à 83 ans)) est un économiste … Wikipédia en Français
Gerard Debreu — Gérard Debreu Gérard Debreu Gérard Debreu (Calais, 4 juillet 1921 – Paris, 31 décembre 2004 (à 83 ans)) est un économiste … Wikipédia en Français
Gérard Debreu — (Calais, 4 juillet 1921 – Paris, 31 décembre 2004 (à 83 ans)) est un économiste français possédant la doub … Wikipédia en Français
quasiconcavity — noun The state or condition of being quasiconcave … Wiktionary
