Monday June 26, 2006 9:00-12:30, Tutorial Session Prof. Giorgio Franceschetti, University Federico II of Napoli, Italy and UCLA, USA, 'An overall vision of electromagnetic propagation in built-up areas' Abstract: Propagation in the urban environment is in principle a well-posed problem: the electromagnetic field radiated by prescribed sources must fulfil Maxwell equations in the open space and boundary conditions over the built-up buildings walls.