Our starting point is the following question: To what extent is a function's value at a point x of a topological space determined by its values in an arbitrarily small (deleted) neighborhood of x? For ...

This example illustrates some properties of splines. Splines are curves, which are usually required to be continuous and smooth. Splines are usually defined as piecewise polynomials of degree n with ...

This is a preview. Log in through your library . Abstract Let $D: C^n\lbrack 0, 1 \rbrack \rightarrow \mathscr{M}$ be a derivation from the Banach algebra of $n ...