title: A random walk through models of nonlinear clustering.
abstract: A few simple models of the mass function of collapsed objects are presented. The emphasis is on apparently unrelated models which end up giving the same answer for the number density and merger histories of virialized clumps. Models of the spatial distribution of the clumps and how they can be used to model the spatial distribution of the mass are briefly discussed.
authors: NASA/Fermilab Astrophysics Group, MS 209, Batavia, Illinois 60510-0500, USA. sheth@fnal.gov
authors: R K
authors: RK
authors: Sheth