Analysis of the transport sector in Italy gives evidence of infrastructure scarcity, management and organisational problems and, more generally, of poor quality and competitiveness of the services. At the end of 2005 the Italian Ministry of Infrastructures and Trasport established the UIRNet...

A central limit theorem for multidimensional processes in the sense of [9 and 10] is proved. In particular the asymptotic normal distribution of a sum of dependent random functions of m variables defined on the positive part of the integral lattice is established by the method of moments. The...