Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Test of the Particle Paradigm in N-Body Simulations   We present results of tests of the evolution of small ``fluid elements'' in
cosmological N--body simulations, to examine the validity of their treatment as
particles. We find that even very small elements typically collapse along one
axis while expanding along another, often to twice or more their initial
comoving diameter. This represents a possible problem for high--resolution uses
of such simulations.

33
The categories of this paper are: plasm-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: econ
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
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The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
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The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th