CONTENTS
TOPICAL ISSUE
MECHANICS, DYNAMICAL SYSTEMS AND CONTROL: THEORY AND APPLICATIONS
Felipe Monroy-Perez, Guest Editor
Cutberto Romero-Melendez, Associate Guest Editor
PREFACE . . . . . . . . . . . . . . . . 125
Tatiana Filippova, State estimation for a class of nonlinear dynamic systems through HJB technique . . . . . . 127
Cutberto Romero-Melendez, and Felipe Monroy-Perez, The motion planning problem: differential flatness and nilpotent approximation . . . . . . . . . . . . . . . . . .133
Ollin Penaloza-Mejıa, Joaquın Alvarez, and Luis A. Marquez-Martınez, Discontinuous control design for tracking feasible trajectories in underactuated manipulators . . . . . . . . . . . 143
Alfonso Anzaldo-Meneses, and Felipe Monroy-Perez, On the class of optimal control problems of 3-step nilpotent systems . . . . . 151
B. Aguirre-Hernandez, C.A. Loredo-Villalobos, and F.R. Garcıa-Sosa, A proposal of problems about stable Hurwitz polynomials . . . . . . . . . . . . . . 159
E.V. Kurmyshev, and L.J. Lopez-Reyes, Resonance instability of nonlinear vibrations of a string under harmonic heating . . . . . . . . . . . . . .165
Omar Sanchez-Rodrıguez, Juan Carlos Chimal-Eguia, and R. Barron-Fernndez, Nonlinear control applied on PVTOL with restricted Cartesian dynamics. . . . . . . . 169
O. Olotu, and E.J. Dansu, Penalty function method for optimizing constrained proportional control problems . . . 177
REGULAR PAPER
Vladimir Bondarko, Zeros of delayed sampled systems. . . . . . . . . 183
CYBERNETICS AND PHYSICS, Vol. 2, No. 3. 2013 , 123