Definition:Strictly Concave Real Function

Definition
Let $f$ be a real function which is defined on a real interval $I$.

Also known as
A strictly concave function can also be referred to as:
 * a strictly concave down function
 * a strictly convex up function

Also see

 * Equivalence of Definitions of Strictly Concave Real Function


 * Definition:Concave Real Function


 * Definition:Convex Real Function
 * Definition:Strictly Convex Real Function