Worse, in complex systems, are the unknown unknowns.
These four dynamical properties are determined by the parameters of the dynamical system and the unknown parameters of biological systems need to be estimated.
First, the main system dynamics are rewritten as an augmented system with state vector including both the state vector of the main system and the unknown inputs.
The proposed scheme (19) forms a block linear tridiagonal system in the unknown vector (mathbf{W}^{n+1}) and can be solved directly using Crout's method.
The solution of the resulting system yields the unknown Bernstein coefficients of the solution functions.
Semi-global practical asymptotic stability analysis of the overall system to the unknown optimum is achieved.
Ultimately, Germany's willingness to force Greece out of the eurozone, and Greece's unwillingness to risk the collapse of its banking system and the unknown economic consequences of a Grexit, have brought Greece to its knees.
This paper deals with the master slave synchronization scheme for partially known nonlinear fractional order systems, where the unknown dynamics is considered as the master system and we propose the slave system structure which estimates the unknown state variables.
The unknown constant disturbance of parameters in chaotic systems and the unknown input in chaotic signals can be regarded as messages to be recovered in the slave end.
The problem of Mittage-Leffler stabilization has been investigated for a class of fractional-order nonlinear systems with the unknown control coefficients.
