Title
Some estimates for h–p–k-refinement in Isogeometric Analysis
Abstract
In this paper, we propose a theoretical study of the approximation properties of NURBS spaces, which are used in Isogeometric Analysis. We obtain error estimates that are explicit in terms of the mesh-size h, the degree p and the global regularity, measured by the parameter k. Our approach covers the approximation with global regularity from C 0 up to C k–1, with 2k − 1 ≤ p. Notice that the interesting case of higher regularity, up to k = p, is still open. However, our results give an indication of the role of the smoothness k in the approximation properties, and offer a first mathematical justification of the potential of Isogeometric Analysis based on globally smooth NURBS.
Year
DOI
Venue
2011
10.1007/s00211-010-0338-z
Numerische Mathematik
Keywords
Field
DocType
c k,parameter k,error estimate,nurbs space,smoothness k,approximation property,global regularity,degree p,higher regularity,isogeometric analysis
Mathematical optimization,Mathematical analysis,Isogeometric analysis,Numerical analysis,Smoothness,Mathematics
Journal
Volume
Issue
ISSN
118
2
0945-3245
Citations 
PageRank 
References 
28
2.30
0
Authors
4
Name
Order
Citations
PageRank
L. Beirão da Veiga122321.23
A. Buffa236027.78
J. Rivas3595.95
G. Sangalli411516.54