quasiconcave

Example:The concept of pseudconcavity is often used in optimization problems to relax the strict concavity requirements.

Definition:Resembling a concave function but not necessarily meeting the strict conditions of concavity.

Example:In optimization problems, the concept of quasiconvexity is the counterpart to quasiconcavity to describe the behavior of the function.

Definition:The opposite of quasiconcave, describing a function or curve that is convex or flat in at least one region, with superlevel sets that are convex.