Support (mathematics)

In mathematics, the support of a real-valued function f is the subset of the domain containing the elements which are not mapped to zero. If the domain of f is a topological space, the support of f is instead defined as the smallest closed set containing all points not mapped to zero. This concept is used very widely in mathematical analysis.

Support (mathematics)

In mathematics, the support of a real-valued function f is the subset of the domain containing the elements which are not mapped to zero. If the domain of f is a topological space, the support of f is instead defined as the smallest closed set containing all points not mapped to zero. This concept is used very widely in mathematical analysis.