Invex function

（重定向自Invex）

In vector calculus, an invex function is a differentiable function ƒ from R to R for which there exists a vector valued function g such that

for all x and u.

Invex functions were introduced by Hanson as a generalization of convex functions. Ben-Israel and Mond provided a simple proof that a function is invex if and only if every stationary point is a global minimum.

单词	Invex
释义	Invex 英语百科 Invex function （重定向自Invex） In vector calculus, an invex function is a differentiable function ƒ from R to R for which there exists a vector valued function g such that for all x and u. Invex functions were introduced by Hanson as a generalization of convex functions. Ben-Israel and Mond provided a simple proof that a function is invex if and only if every stationary point is a global minimum.
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