Convergence of quasi-Newton methods for solving constrained generalized equations*

Author(s)

Andreani, Roberto ; Carvalho, Rui M. ; Secchin, Leonardo D. ; Silva, Gilson N.

• Document type: Journal article
• Source: ESAIM-CONTROL OPTIMISATION AND CALCULUS OF VARIATIONS; v. 28, p. 24-pg., 2022-05-25.

Abstract

In this paper, we focus on quasi-Newton methods to solve constrained generalized equations. As is well-known, this problem was firstly studied by Robinson and Josephy in the 70's. Since then, it has been extensively studied by many other researchers, specially Dontchev and Rockafellar. Here, we propose two Broyden-type quasi-Newton approaches to dealing with constrained generalized equations, one that requires the exact resolution of the subproblems, and other that allows inexactness, which is closer to numerical reality. In both cases, projections onto the feasible set are also inexact. The local convergence of general quasi-Newton approaches is established under a bounded deterioration of the update matrix and Lipschitz continuity hypotheses. In particular, we prove that a general scheme converges linearly to the solution under suitable assumptions. Furthermore, when a Broyden-type update rule is used, the convergence is superlinearly. Some numerical examples illustrate the applicability of the proposed methods. (AU)

• FAPESP's process: 17/18308-2 - Second-order optimality conditions and algorithms
• Grantee: Gabriel Haeser
• Support Opportunities: Regular Research Grants
• FAPESP's process: 13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry
• Grantee: Francisco Louzada Neto
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC