Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some Notes on Constructions of Binary Sequences with Optimal
  Autocorrelation   Constructions of binary sequences with low autocorrelation are considered in
the paper. Based on recent progresses about this topic, several more general
constructions of binary sequences with optimal autocorrelations and other low
autocorrelations are presented.

37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th