Stefano Baranzini, “Operators Arising as Second Variation of Optimal Control Problems and Their Spectral Asymptotics”, J Dyn Control Syst, 29, no. 3, 2023, 659
Stefano Baranzini, “Functional determinants for the second variation”, J. Fixed Point Theory Appl., 26, no. 2, 2024, 12
L. Poggiolini, G. Stefani, Proceedings of the 44th IEEE Conference on Decision and Control, 2005, 1433
Enrico Massa, Danilo Bruno, Gianvittorio Luria, Enrico Pagani, “Geometric constrained variational calculus. II: The second variation (Part I)”, Int. J. Geom. Methods Mod. Phys., 13, no. 01, 2016, 1550132
G. Stefani, 3, 42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2003, 2746
L. Poggiolini, G. Stefani, 7116, Large-Scale Scientific Computing, 2012, 147
Laura Poggiolini, Gianna Stefani, “State-local optimality of a bang–bang trajectory: a Hamiltonian approach”, Systems & Control Letters, 53, no. 3-4, 2004, 269
Laura Poggiolini, Gianna Stefani, 366, Lagrangian and Hamiltonian Methods for Nonlinear Control 2006, 2007, 281
L. Poggiolini, G. Stefani, “Bang-singular-bang extremals: sufficient optimality conditions”, J Dyn Control Syst, 17, no. 4, 2011, 469
Laura Poggiolini, Gianna Stefani, “Strong Local Optimality for a Bang-Bang-Singular Extremal: The Fixed-Free Case”, SIAM J. Control Optim., 56, no. 3, 2018, 2274