Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Condensation and evaporation on a randomly occupied square lattice   We study the evolution of an initially random distribution of particles on a
square lattice, under certain rules for `growing' and `culling' of particles.
In one version we allow the particles to move laterally along the surface
(mobile layer) and in the other version this motion is not allowed (immobile
case). In the former case both analytical and computer simulation results are
presented, while in the latter only simulation is possible. We introduce growth
and culling probabilities appropriate for condensation and evaporation on a
two-dimensional surface, and compare results with existing models for this
problem. Our results show very interesting behaviour, under certain conditions
quite different from earlier models. We find a possibility of hysteresis not
reported earlier for such models. ~

25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an