TY - JOUR T1 - A Dual Algorithm for Minimizing a Quadratic Function with Two Quadratic Constraints AU - Yuan , Ya-Xiang JO - Journal of Computational Mathematics VL - 4 SP - 348 EP - 359 PY - 1991 DA - 1991/09 SN - 9 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jcm/9410.html KW - AB -

In this paper, we present a dual algorithm for minimizing a convex quadratic function with two quadratic constraints. Such a minimization problem is a subproblem that appears in some trust region algorithms for general nonlinear programming. Some theoretical properties of the dual problem are given. Global convergence of the algorithm is proved and a local superlinear convergence result is presented. Numerical examples are also provided.