%0 Journal Article %T A new double trust regions SQP method without a penalty function or a filter %A Xiaojing Zhu %A Dingguo Pu %J Computational and Applied Mathematics %D 2012 %I %R 10.1590/s1807-03022012000200011 %X A new trust-region SQP method for equality constrained optimization is considered. This method avoids using a penalty function or a filter, and yet can be globally convergent to first-order critical points under some reasonable assumptions. Each SQP step is composed of a normal step and a tangential step for which different trust regions are applied in the spirit of Gould and Toint [Math. Program., 122 (2010), pp. 155-196]. Numerical results demonstrate that this new approach is potentially useful. Mathematical subject classification: 65K05, 90C30, 90C55. %K equality constrained optimization %K trust-region %K SQP %K global convergence %U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-03022012000200011