Title
Polynomial reproduction for univariate subdivision schemes of any arity
Abstract
In this paper, we study the ability of convergent subdivision schemes to reproduce polynomials in the sense that for initial data, which is sampled from some polynomial function, the scheme yields the same polynomial in the limit. This property is desirable because the reproduction of polynomials up to some degree d implies that a scheme has approximation order d+1. We first show that any convergent, linear, uniform, and stationary subdivision scheme reproduces linear functions with respect to an appropriately chosen parameterization. We then present a simple algebraic condition for polynomial reproduction of higher order. All results are given for subdivision schemes of any arity m≥2 and we use them to derive a unified definition of general m-ary pseudo-splines. Our framework also covers non-symmetric schemes and we give an example where the smoothness of the limit functions can be increased by giving up symmetry.
Year
DOI
Venue
2011
10.1016/j.jat.2010.11.002
Journal of Approximation Theory
Keywords
Field
DocType
Subdivision schemes,Polynomial reproduction,Approximation order
Limit of a function,Discrete mathematics,Algebraic number,Arity,Polynomial,Mathematical analysis,Subdivision,Univariate,Linear function,Smoothness,Mathematics
Journal
Volume
Issue
ISSN
163
4
0021-9045
Citations 
PageRank 
References 
15
1.13
8
Authors
2
Name
Order
Citations
PageRank
Costanza Conti114518.61
Kai Hormann272653.94