Petre Birtea

11 papers Journal 11
YearRankTypeTitle / Venue / Authors
2019 J jnl
First order optimality conditions and steepest descent algorithm on orthogonal Stiefel manifolds.
Optim. Lett.
Petre Birtea, Ioan Casu, Dan Comanescu
2017 J jnl
Newton Algorithm on Constraint Manifolds and the 5-Electron Thomson Problem.
J. Optim. Theory Appl.
Petre Birtea, Dan Comanescu
2016 J jnl
A New Training Method for Feedforward Neural Networks Based on Geometric Contraction Property of Activation Functions.
CoRR
Petre Birtea, Cosmin Cernazanu-Glavan, Alexandru Sisu
2015 J jnl
Hessian Operators on Constraint Manifolds.
J. Nonlinear Sci.
Petre Birtea, Dan Comanescu
2014 J jnl
Averaging on Manifolds by Embedding Algorithm.
J. Math. Imaging Vis.
Petre Birtea, Dan Comanescu, Calin-Adrian Popa
2013 J jnl
Energy Methods in the stability Problem for the 픰픬(4) Free Rigid Body.
Int. J. Bifurc. Chaos
Petre Birtea, Ioan Casu
2013 J jnl
The stability problem and special solutions for the 5-components Maxwell-Bloch equations.
Appl. Math. Lett.
Petre Birtea, Ioan Casu
2012 J jnl
Stability of Equilibria for the $\mathfrak{so}(4)$ Free Rigid Body.
J. Nonlinear Sci.
Petre Birtea, Ioan Casu, Tudor S. Ratiu, Murat Turhan
2009 J jnl
Asymptoic Stability of Dissipated Hamilton-Poisson Systems.
SIAM J. Appl. Dyn. Syst.
Petre Birtea, Dan Comanescu
2007 J jnl
Controllability problems in the charged top dynamics.
Syst. Control. Lett.
Petre Birtea, Mircea Puta, Razvan M. Tudoran, Constantin Voicu
2004 J jnl
Controllability of Poisson Systems.
SIAM J. Control. Optim.
Petre Birtea, Mircea Puta, Tudor S. Ratiu