Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dihedral group codes over finite fields   Bazzi and Mitter [3] showed that binary dihedral group codes are
asymptotically good. In this paper we prove that the dihedral group codes over
any finite field with good mathematical properties are asymptotically good. If
the characteristic of the field is even, we construct asymptotically good
self-dual dihedral group codes. If the characteristic of the filed is odd, we
construct both the asymptotically good self-orthogonal dihedral group codes,
and the asymptotically good LCD dihedral group codes.

23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess