Models of adhesion of extended particles on linear and planar substrates are
of interest in interpreting surface deposition in colloid, polymer, and certain
biological systems. An introduction is presented to recent theoretical advances
in modeling these processes. Effects of diffusional relaxation are surveyed in
detail, including results obtained by analytical, large-scale numerical,
mean-field and scaling approaches.Comment: Review article to appear in Annual Reviews in Computational Physics;
24 pages in plain TeX + 4 PostScript figure