Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On constructing complete permutation polynomials over finite fields of
  even characteristic   In this paper, a construction of complete permutation polynomials over finite
fields of even characteristic proposed by Tu et al. recently is generalized in
a recursive manner. Besides, several classes of complete permutation
polynomials are derived by computing compositional inverses of known ones.

33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con