SURFACE-DIFFUSION - AN EXERCISE IN D=2+1 DYNAMICS

The diffusion of particles on surfaces of solids play important role i n understanding variety of phenomena, which are of considerable theore tical and applied interest. For example surface diffusion may alter th e mode of the morphological structure via which crystal growth progres ses. Study of surface diffusion, and more generally dynamics of many p article systems on solid surfaces may also offer an insight into the m ore fundamental problems, for example how many particle dynamics is af fected by change of the spatial dimensionality.