In this paper, a partially asynchronous block Broyden method is presented for solving nonlinear systems of equations of the form F(x)= 0. Sufficient conditions that guarantee its local convergence are given. In particular, local convergence is shown when the Jacobian F'(x\*) is an H-matrix, where x\
Inexact-Newton methods for semismooth systems of equations with block-angular structure
✍ Scribed by Nataŝa Krejić; JoséMario Martínez
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 507 KB
- Volume
- 103
- Category
- Article
- ISSN
- 0377-0427
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✦ Synopsis
Systems of equations with block-angular structure have applications in evolution problems coming from physics, engineering and economy. Many times, these systems are time-stage formulations of mathematical models that consist of mathematical programming problems, complementarity, or other equilibrium problems, giving rise to nonlinear and nonsmooth equations. The final versions of these dynamic models are nonsmooth systems with block-angular structure. If the number of state variables and equations is large, it is sensible to adopt an inexact-Newton strategy for solving this type of systems. In this paper we define two inexact-Newton algorithms for semismooth block-angular systems and we prove local and superlinear convergence.
📜 SIMILAR VOLUMES
In this paper we study the convergence properties of Newton's sequence for analytic systems of equations with constant rank derivatives. Our main result is an alpha-theorem which ensures the convergence of Newton's sequence to a leastsquare solution of this system.