References for the Optimization Solvers
1. A.R. Conn, K. Scheinberg, and L.N. Vicente, Introduction to Derivative-Free Optimization, MPS-SIAM Series on Optimization, SIAM, 2009.
2. D. Lee, and M. Wiswall, “A Parallel Implementation of the Simplex Function Minimization Routine”, Computational Economics, vol. 30, pp. 171–187, 2007.
3. Mike J.D. Powell: The BOBYQA algorithm for bound constraint optimization without derivatives, Report DAMTP 2009/NA06, University of Cambridge, UK, 2009.
4. Mike J.D. Powell: “A direct search optimization method that models the objective and constraint functions by linear interpolation”, Proc. Sixth Workshop on Optimization and Numerical Analysis, vol. 275, pp. 51–67, Kluwer Academic Publishers, Dordrecht, NL, 1994.
5. P.E. Gill, W. Murray, and M.A. Saunders, User’s Guide for SNOPT Version 7: Software for Large-Scale Nonlinear Programming, Systems Optimization Laboratory (SOL), Stanford University, 2006.
6. P.E. Gill, W. Murray, and M.A. Saunders, “SNOPT: An SQP Algorithm for Large-Scale Constrained Optimization”, SIAM Review, vol. 47, no. 1, pp. 99–131, 2005.
7. A. Wächter, and T.B. Lorenz, “On the implementation of an interior-point filter line-search algorithm for large-scale nonlinear programming.”, Mathematical Programming, vol 106, no. 1, pp. 25-57, 2006.
8. Krister Svanberg, MMA and GCMMA – Fortran versions March 2013, KTH, Royal Institute of Technology, Stockholm, 2013.
9. Krister Svanberg, “The Method of Moving Asymptotes – a new Method for Structural Optimization”, International Journal for Numerical Methods in Engineering 24(2), pp. 369–373, 1987.
10. K. Madsen, H.B. Nielsen, and O. Tingleff, Methods for Non-Linear Least Squares Problems, 2nd ed., 2004.
11. R. Andreani, E.G. Birgin, J.M. Martinez, and M.L. Schuverdt, “On Augmented Lagrangian Methods with general lower-level constraints.”, SIAM Journal on Optimization, 18, pp. 1286–1309, 2007.
Ref. 8 is available in <COMSOL_root>/doc/pdf/Optimization_Module/gcmma.pdf, where <COMSOL_root> is the root folder of your COMSOL installation.