Does Newton's method for set-valued maps converges uniformly in mild differentiability context?
Keywords:
Set-valued maps, Aubin continuity, generalized equations, Newton's method, superlinear uniform convergence (es)Downloads
In this article, we study the existence of Newton-type sequence for solving the equation y ϵ f(𝓍) + F(𝓍) where y is a small parameter, f is a function whose Fréchet derivative satisfies a Holder condition of the form II∇f(𝓍k) -∇f(x2)∥ ≤ K ∥lx1 - x2∥d and F is a set-valued map between two Banach spaces X and Y. We prove that the Newton-type method y ∈ f(𝓍k) +∇f(𝓍k)(𝓍k+1 - 𝓍k ) +F(𝓍k+1), is locally convergent to a solution of y ϵ f(𝓍) + F(𝓍) if the set valued map (f(x* )+ ∇f(x* )(∙-𝓍*)+F(∙))-1 is Aubin continuous at (0,𝓍*) where 𝓍* is a solution of 0 ϵ f(𝓍) + F(𝓍). Moreover, we show that this convergence is superlinear uniformly in the parameter y and quadratic when d = 1.
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Copyright (c) 2000 Revista Colombiana de Matemáticas
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