invex

释义与例句

adj.
  1. 1.

    Of a differentiable function f:ℝⁿ→ℝ, being such that there exists a vector valued function g such that f(x)-f(u)≥g(x,u)·∇f(u),, for all x and u.

    数学

词源

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

来源：wiktionary