Finitely-Generated Algebras of Smooth Fu
โ
Graham Allan; Grayson Kakiko; A.G O'Farrell; R.O Watson
๐
Article
๐
1998
๐
Elsevier Science
๐
English
โ 264 KB
We characterise the closure in C (R, R) of the algebra generated by an arbitrary finite point-separating set of C functions. The description is local, involving Taylor series. More precisely, a function f # C belongs to the closure of the algebra generated by 1 , ..., r as soon as it has the ``right