Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Algebraic Structures Related to Reflection Equations   Quadratic algebras related to the reflection equations are introduced. They
are quantum group comodule algebras. The quantum group $F_q(GL(2))$ is taken as
the example. The properties of the algebras (center, representations,
realizations, real forms, fusion procedure etc) as well as the generalizations
are discussed.

13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom