Title
Certified Numerical Homotopy Tracking.
Abstract
Given a homotopy connecting two polynomial systems, we provide a rigorous algorithm for tracking a regular homotopy path connecting an approximate zero of the start system to an approximate zero of the target system. Our method uses recent results on the complexity of homotopy continuation rooted in the alpha theory of Smale. Experimental results obtained with an implementation in the numerical algebraic geometry package Macaulay2 demonstrate the practicality of the algorithm. In particular, we confirm the theoretical results for random linear homotopies and illustrate the plausibility of a conjecture by Shub and Smale on a good initial pair.
Year
DOI
Venue
2012
10.1080/10586458.2011.606184
EXPERIMENTAL MATHEMATICS
Keywords
Field
DocType
Computational aspects of algebraic geometry,systems of equations,continual methods,homotopy methods,approximate zero,certified algorithms,complexity
Topology,System of linear equations,Polynomial,Algebra,Mathematical analysis,n-connected,Cofibration,Homotopy,Homotopy analysis method,Regular homotopy,Homotopy lifting property,Mathematics
Journal
Volume
Issue
ISSN
21.0
1.0
1058-6458
Citations 
PageRank 
References 
10
0.68
8
Authors
2
Name
Order
Citations
PageRank
Carlos Beltrán110210.04
Anton Leykin217318.99