Asymptoic Stability of Dissipated Hamilton-Poisson Systems. - Petre Birtea; Dan Comanescu (SIAM J. Appl. Dyn. Syst., 2009)

The stability problem for the torque-free gyrostat investigated by using algebraic methods. - Dan Comanescu (Appl. Math. Lett., 2012)

Averaging on Manifolds by Embedding Algorithm. - Petre Birtea; Dan Comanescu; Calin-Adrian Popa (J. Math. Imaging Vis., 2014)

Hessian Operators on Constraint Manifolds. - Petre Birtea; Dan Comanescu (J. Nonlinear Sci., 2015)

Newton Algorithm on Constraint Manifolds and the 5-Electron Thomson Problem. - Petre Birtea; Dan Comanescu (J. Optim. Theory Appl., 2017)

First order optimality conditions and steepest descent algorithm on orthogonal Stiefel manifolds. - Petre Birtea; Ioan Casu; Dan Comanescu (Optim. Lett., 2019)