Solving polynomial equations in smoothed polynomial time and a near solution to smale's 17th problem
Proceedings of the forty-second ACM symposium on Theory of computing
Convexity Properties of the Condition Number
SIAM Journal on Matrix Analysis and Applications
The nearest complex polynomial with a zero in a given complex domain
Theoretical Computer Science
The Condition Metric in the Space of Rectangular Full Rank Matrices
SIAM Journal on Matrix Analysis and Applications
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We introduce a new complexity measure of a path of (problems, solutions) pairs in terms of the length of the path in the condition metric which we define in the article. The measure gives an upper bound for the number of Newton steps sufficient to approximate the path discretely starting from one end and thus produce an approximate zero for the endpoint. This motivates the study of short paths or geodesics in the condition metric.