Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Triaxiality Inhibitors in N-Body Simulations   Numerous previous studies have investigated the phenomenon wherein initially
spherical N-body systems are distorted to triaxial shapes. We report on an
investigation of a previously described orbital instability that should oppose
triaxiality. After verifying the instability with numerical orbit integrations
that extend the original analysis, we search for evidence of the instability in
N-body systems that become triaxial. Our results highlight the difficulty in
separating dynamical process from finite-N effects. While we argue that our
analysis points to the presence of the instability in simulated triaxial
systems, discreteness appears to play a role in mimicking the instability. This
suggests that predicting the shapes of real-world systems, such as dark matter
halos around galaxies, based on such simulations involves more uncertainty than
previously thought.

17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs