Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Khovanov homology and words   This paper is concerned with nanowords, a generalization of links, introduced
by Turaev. It is shown that the system of bigraded homology groups is an
invariant of nanowords by introducing a new notion. This paper gives two
examples which show the independence of this invariant from some of Turaev's
homotopy invariants.

8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
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
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an