Asymptotic tracking is studied for systems which are not regular, that is th.e relative degree is not well defined. Hence the control law derived from exact inputoutput linearization has singularities in the state space. We propose a tracking control law which switches between an approximate tracking law [l] close to the singularities, and an exact tracking law away from the singularities, and ...

Asymptotic tracking is studied for systems in which the relative degree is not well deened, meaning that the control law derived from exact input-output linearization has singularities in the state space. We propose a tracking control law which switches between approximate tracking 1] close to the singularities, and exact tracking away from the singularities, and we study the applicability of t...

This paper proposes a controller design method to stabilize class of nonlinear, non-autonomous second-order systems in finite time. is developed based on exact-linearization and Pontryagin’s minimum time principle. It shown that the system can be stabilized which upper bound chosen according initial states system. Simulation results are given validate theoretical analysis

Recently, different forgetting approaches for knowledge bases expressed in different logics were proposed. For EL terminologies containing each atomic concept at most once on the left-hand side, an approach has been proposed based on sufficient, but not necessary acyclicity conditions. In this paper, we propose an approach for computing a uniform interpolant for general EL terminologies. We fir...

We obtain exact, simple and very compact expressions for the linearization coefficients of products orthogonal polynomials; both conventional Clebsch-Gordan-type modified version. The are general depending only on three-term recursion relation linearizing polynomials. These more appropriate useful doing numerical calculations when compared to other exact formulas found in mathematics literature...

In the present research paper, an iterative approach named Shehu transform method is implemented to solve time-fractional hyperbolic telegraph equations in one, two, and three dimensions, respectively. These are prominent ones field of physics some other significant problems. The efficacy authenticity proposed tested using a comparison approximated exact results graphical form. Both 2D 3D plots...