In mathematics, the notion of concave set is complementary to that of the convex set.
The following definitions are in use.
- A set is called concave if it is not convex.
- A set is called concave if its complement is convex.[1]
See also
References
- ^ Ragnar Frisch (1961) "A Survey of Types of Economic Forecasting and Programming", Institute of Economics, University of Oslo, p.40.
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