4 citations · 6 across the 6 of their papers we have counts for
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New geometric results in eigenstructure assignment
Fabrizio Padula, Augusto Ferrante, Lorenzo Ntogramatzidis
The focus of this paper is the connection between two foundational areas of LTI systems theory: geometric control and eigenstructure assignment. In particular, we study the propert…
Fixed poles of the disturbance decoupling problem by dynamic output feedback for biproper systems
Fabrizio Padula, Lorenzo Ntogramatzidis
This paper investigates the disturbance decoupling problem by dynamic output feedback in the general case of systems with possible input-output feedthrough matrices. In particular,…
The geometry of the generalized algebraic Riccati equation and of the singular Hamiltonian system
Lorenzo Ntogramatzidis, Augusto Ferrante
This paper analyzes the properties of the solutions of the generalized continuous algebraic Riccati equation from a geometric perspective. This analysis reveals the presence of a s…
The extended symplectic pencil and the finite-horizon LQ problem with two-sided boundary conditions
Augusto Ferrante, Lorenzo Ntogramatzidis
This note introduces a new analytic approach to the solution of a very general class of finite-horizon optimal control problems formulated for discrete-time systems. This approach…