Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classification of a family of three dimensional real evolution algebras   In this paper we classify a family of three-dimensional real evolution
algebras. We also consider an evolution operator for an evolution algebra and
find fixed points of this operator for two and three-dimensional cases. Then we
construct an evolution algebra, the matrix of structural constants of which is
Jacobian of the evolution operator at a fixed point. We study isomorphism
between these evolution algebras.

23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th