The approximation and extension of uniformly continuous Banach space valued mappings
The best L2-approximation by finite sums of functions with separable variables.
The Boubaker polynomials expansion scheme BPES for solving a standard boundary value problem.
The Convergence Rates of Expansions in Jacobi Polynomials.
The fundamentality of sets of ridge functions.
The -variants of a prescribed sequence of orthogonal polynomials.
Tracking through singularities using sliding mode differentiators
In this work, an alternative solution to the tracking problem for a SISO nonlinear dynamical system exhibiting points of singularity is given. An inversion-based controller is synthesized using the Fliess generalized observability canonical form associated to the system. This form depends on the input and its derivatives. For this purpose, a robust exact differentiator is used for estimating the control derivatives signals with the aim of defining a control law depending on such control derivative...