Invex

English

Etymology

Introduced by Morgan A. Hanson in 1981 as a generalization of convex.

Adjective

1. Template:Lb Of a differentiable function $f:{ℝ}^n\to ℝ$, being such that there exists a vector valued function g such that $f(x)-f(u)\ge g(x,u)\cdot \mathrm{\nabla }f(u),$ for all x and u.

Derived terms

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Anagrams

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