Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chaos in Lifshitz Spacetimes   We investigate the chaotic behavior of a circular test string in the Lifshitz
spacetimes considering the critical exponent $z$ as an external control
parameter. It is demonstrated that two primary tools to observe chaos in this
system are Poincar\'{e} section and Lyapunov exponent. Finally, the numerical
result shows that if $z=1$, the string dynamics is regular, while in a case
slightly larger than $z=1$, the dynamics can be irregular and chaotic.

24
The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
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The categories of this paper are: solv-int