A robust Kantorovich's theorem on inexact Newton method with relative residual error tolerance

Details A robust Kantorovich's theorem on inexact Newton method with relative residual error tolerance A robust Kantorovich's theorem on inexact Newton method with relative residual error tolerance

2011-10-15

arxiv.org/abs/1110.3430v1

Mathematics

Numerical Analysis

Scientific paper

We prove that under semi-local assumptions, the inexact Newton method with a fixed relative residual error tolerance converges Q-linearly to a zero of the non-linear operator under consideration. Using this result we show that Newton method for minimizing a self-concordant function or to find a zero of an analytic function can be implemented with a fixed relative residual error tolerance. In the absence of errors, our analysis retrieve the classical Kantorovich Theorem on Newton method.

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