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math.OC2012
Linear positive control systems on time scales. Controllability
Zbigniew Bartosiewicz
Positive linear systems on arbitrary time scales are studied. The theory developed in the paper unifies and extends concepts and results known for continuous-time and discrete-time…
math.OC2010★ 57 cited
The Second Euler-Lagrange Equation of Variational Calculus on Time Scales
Zbigniew Bartosiewicz, Natalia Martins, Delfim F. M. Torres
The fundamental problem of the calculus of variations on time scales concerns the minimization of a delta-integral over all trajectories satisfying given boundary conditions. In th…