Maciel, María; Mendonça, María; Verdiell, Adriana - In: Computational Optimization and Applications 54 (2013) 1, pp. 27-43
Two trust regions algorithms for unconstrained nonlinear optimization problems are presented: a monotone and a nonmonotone one. Both of them solve the trust region subproblem by the spectral projected gradient (SPG) method proposed by Birgin, Martínez and Raydan (in SIAM J. Optim....
