Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Three Logistic Models for the Two-Species Interactions: Symbiosis,
  Predator-Prey and Competition   If one isolated species is supposed to evolve following the logistic mapping,
then we are tempted to think that the dynamics of two species can be expressed
by a coupled system of two discrete logistic equations. As three basic
relationships between two species are present in Nature, namely symbiosis,
predator-prey and competition, three different models are obtained. Each model
is a cubic two-dimensional discrete logistic-type equation with its own
dynamical properties: stationarity, periodicity, quasi-periodicity and chaos.
Furthermore, these models could be considered as the basic ingredients to
construct more complex interactions in the ecological networks.

23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph