Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the butterfly effect   The term "butterfly effect" means an extreme sensitivity of a dynamical
system to small perturbations: "The beating of a butterfly wing in South
America can result in the considerable change of positions and force of a
tropical cyclon in Atlantic 2 weeks later". Numerical simulations of R.Robert
show the absence of the butterfly effect in some simple flows of 2-d ideal
incompressible fluid which is a model of the atmosphere. In this work a more
complicated flow is considered. Numerical simulation demonstrates the butterfly
effect in the strongest form. The effect is robust, and the experiment is 100%
reproducible.

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The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph