Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Canonical, Lie-algebraic and quadratic twist deformations of Galilei
  group   New Galilei quantum groups dual to the Hopf algebras proposed in [1] are
obtained by the nonrelativistic contraction procedures. The corresponding
Lie-algebraic and quadratic quantum space-times are identified with the
translation sectors of considered algebras.

8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
17
The categories of this paper are: q-fin