Revista de la Unión Matemática Argentina
versión On-line ISSN 1669-9637
We introduce a concept of best local approximation using abstract norms and non-homogeneous dilations. The asymptotic behavior of the normalized error function as well as the limit of some net of best approximation polynomials as are studied.
Palabras clave : Best local approximations; function norms; non-homogeneous dilations.