Spectral properties of general advection operators and weighted   translation semigroups
  We investigate the spectral properties of a class of weighted shift semigroups associated to abstract transport equations with a Lipschitz--continuous vector field with no--reentry boundary conditions. We illustrate our results with various examples taken from collisionless kinetic theory. 
Bertrand Lods, Mustapha Mokhtar-Kharroubi (UMR 6623), Mohammed Sbihi   (UMR 6623)