Function Space
function space
[′fəŋk·shən ‚spās]Function Space
a set of functions for which there is defined a notion of distance or, more generally, of proximity between any two functions. A function space is called linear if, along with any two elements f1 and f2 it contains all their linear combinations αf1, + βf2, where α and β are real or complex numbers. An example of a linear function space is the space C(a, b) of all continuous functions on the interval [a, b] with the distance p(f1, f2) between two functions being given by the formula
Function spaces are the most important concrete linear spaces studied in functional analysis. [28–388–1 ]