Mathematical Aspects of Fluid and Plasma Dynamics : Proceedings of an International Workshop held in Salice Terme Italy 26–30 September 1988 Modeling intense relativistic electron beams On the asymptotic theory of the Boltzmann and Enskog equations a rigorous H theorem for the Enskog equation On some numerical problems in semiconductor device simulation Canonical propagators for nonlinear systems: Theory and sample applications Singularity formation for vortex sheets and hyperbolic equations Exact exponential type solutions to the discrete Boltzmann models Semiconductor modelling via the Boltzmann equation Functional analytic techniques in the study of time dependent electron swarms in weakly ionized gases Further results in the nonlinear stability of the magnetic Bénard problem Particle transport in nonhomogeneous media Some recent results on swirling flows of Newtonian and non Newtonian fluids Evaporation and condensation of a rarefied gas between its two parallel plane condensed phases with different temperatures and negative temperature gradient phenomenon — Numerical analysis of the boltzmann equation for hard sphere molecules — Rigorous solution to the extended kinetic equations for homogeneous gas mixtures.