Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cooperative Behavior in a Model of Evolutionary Snowdrift Games with
  $N$-person Interactions   We propose a model of evolutionary snowdrift game with $N$-person
interactions and study the effects of multi-person interactions on the
emergence of cooperation. An exact $N$-th-order equation for the equilibrium
density of cooperators $x^*$ is derived for a well-mixed population using the
approach of replicator dynamics. The results show that the extent of
cooperation drops with increasing cost-to-benefit ratio and the number $N$ of
interaction persons in a group, with $x^{*}\sim1/N$ for large $N$. An algorithm
for numerical simulations is constructed for the model. The simulation results
are in good agreements with theoretical results of the replicator dynamics.

14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph