Title
Robust Padé Approximation via SVD
Abstract
AbstractPadé approximation is considered from the point of view of robust methods of numerical linearalgebra, in particular, the singular value decomposition. This leads to an algorithm for practicalcomputation that bypasses most problems of solution of nearly-singular systems and spuriouspole-zero pairs caused by rounding errors, for which a MATLAB code is provided. The success of this algorithmsuggests that there might be variants of Padé approximation that are pointwise convergent asthe degrees of the numerator and denominator increase to $\infty$, unlike traditional Padéapproximants, which converge only in measure or capacity.
Year
DOI
Venue
2013
10.1137/110853236
Periodicals
Keywords
Field
DocType
Pade approximation,SVD,regularization,Froissart doublet,Nuttall-Pommerenke theorem
Singular value decomposition,Mathematical optimization,Padé approximant,Mathematical analysis,Rounding,Regularization (mathematics),Numerical analysis,Numerical linear algebra,Mathematics,Pointwise,Computation
Journal
Volume
Issue
ISSN
55
1
0036-1445
Citations 
PageRank 
References 
17
1.77
4
Authors
3
Name
Order
Citations
PageRank
Pedro Gonnet18913.43
Stefan Güttel21099.68
Lloyd N. Trefethen31024203.66