Iranian Mathematical Society (IMS) Bulletin of the Iranian Mathematical Society 1017-060X 38 3 2012 09 15 Superlinearly convergent exact penalty projected structured Hessian updating schemes for constrained nonlinear least squares: asymptotic analysis767 786 en N. Mahdavi-Amiri Sharif University of Technology Mohammad Reza Ansari Sharif University of Technology 2010 11 03 Constrained nonlinear programming exact penalty method nonlinear least squares projected structured Hessian update