invex

Meaning

Adjective

  • A differentiable function ƒ from Rn to R is invex if there exists a vector valued function g such that f(x) - f(u) \geq g(x, u) \cdot \nabla f(u), \, for all x and u.

Origin

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

Modern English dictionary

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