We analyze controllability and observability conditions for second order descriptor systems and show how the classical conditions for first order systems can be generalized to this...
—In a previous paper [4], we described an approach to improve the performance of the M/M/2 system by replacing its homogeneous servers with heterogeneous servers. Denoting by β ...
Abstract. Recently, it has been shown that for any higher order pushdown system H and for any regular set C of configurations, the set pre H(C), is regular. In this paper, we give ...
We study the asymptotic behavior at infinity of solutions of a second order evolution equation with linear damping and convex potential. The differential system is defined in a rea...
— An opportunistic radio is a radio able to detect the spectrum unused bands, and to adapt its transmission parameters in order to transmit within these free bands. An opportunis...
Abdelaziz Bouzegzi, Pierre Jallon, Philippe Ciblat