Journal
OPTIMIZATION METHODS & SOFTWARE
Volume 22, Issue 3, Pages 469-483Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/08927020600643812
Keywords
systems of non-linear equations; Gauss-Newton method; trust-region methods; complexity bounds; global rate of convergence
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In this paper, we suggest anew version of the Gauss-Newton method for solving a system of non-linear equations which combines the idea of sharp merit function with the idea of quadratic regularization. For this scheme, we prove general convergence results and, under a natural non-degeneracy assumption,, local quadratic convergence. We analyze the behavior of this scheme on a natural problem class for which we get global and local worst-case complexity bounds. The implementation of each step of the scheme can be done by standard convex optimization technique.
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