ABSORBING PML BOUNDARY-LAYERS FOR WAVE-LIKE EQUATIONS

We consider absorbing layers that are extensions of the PML of Berenge r (1994). These will be constructed both for time problems and for Hel mholtz-like equations. We shall consider applications to electricity a nd magnetism and acoustics (with a mean flow) in both physical space a nd in the time Fourier space (Helmholtz equation). Numerical results a re presented showing the efficiency of this condition for the time dep endent Maxwell equations. (C) 1998 Elsevier Science B.V. and IMACS. Al l rights reserved.