Title
Superfast solution of Toeplitz systems based on syzygy reduction
Abstract
We present a new superfast algorithm for solving Toeplitz systems. This algorithm is based on a relation between the solution of such problems and syzygies of polynomials or moving lines. We show an explicit connection between the generators of a Toeplitz matrix and the generators of the corresponding module of syzygies. We show that this module is generated by two elements and the solution of a Toeplitz system Tu=g can be reinterpreted as the remainder of a vector depending on g, by these two generators. We obtain these generators and this remainder with computational complexity Ø(nlog2n) for a Toeplitz matrix of size n×n.
Year
DOI
Venue
2013
10.1016/j.laa.2013.01.015
Linear Algebra and its Applications
Keywords
Field
DocType
65F05,13P05,13P10,14Q99
Discrete mathematics,Combinatorics,Algebra,Polynomial,Remainder,Toeplitz matrix,Syzygy (astronomy),Mathematics,Computational complexity theory,Levinson recursion
Journal
Volume
Issue
ISSN
438
9
0024-3795
Citations 
PageRank 
References 
2
0.38
4
Authors
3
Name
Order
Citations
PageRank
Houssam Khalil1231.35
Bernard Mourrain21074113.70
Michelle Schatzman3299.21