A global convergence theory for an active-trust-region algorithm for solving the general nonlinear programing problem. - Bothina El-Sobky (Appl. Math. Comput., 2003)

A multiplier active-set trust-region algorithm for solving constrained optimization problem. - Bothina El-Sobky (Appl. Math. Comput., 2012)

A penalty method with trust-region mechanism for nonlinear bilevel optimization problem. - Bothina El-Sobky; Yousria Abo-Elnaga (J. Comput. Appl. Math., 2018)