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On the Global Convergence of a Projective Trust Region Algorithm for Nonlinear Equality Constrained Optimization
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作者 yong gang pei De Tong ZHU 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2018年第12期1804-1828,共25页
A trust-region sequential quadratic programming (SQP) method is developed and analyzed for the solution of smooth equality constrained optimization problems. The trust-region SQP algorithm is based on filter line se... A trust-region sequential quadratic programming (SQP) method is developed and analyzed for the solution of smooth equality constrained optimization problems. The trust-region SQP algorithm is based on filter line search technique and a composite-step approach, which decomposes the overall step as sum of a vertical step and a horizontal step. The algorithm includes critical modifications of horizontal step computation. One orthogonal projective matrix of the Jacobian of constraint functions is employed in trust-region subproblems. The orthogonal projection gives the null space of the trans- position of the Jacobian of the constraint function. Theoretical analysis shows that the new algorithm retains the global convergence to the first-order critical points under rather general conditions. The preliminary numerical results are reported. 展开更多
关键词 Sequential quadratic programming TRUST-REGION filter line search PROJECTION global convergence
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