quasiconcave
Adjective. (mathematics) said of a function, if the inverse image of any set of the form (a,∞) for that function is a convex set.This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.