Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quandles and symmetric quandles for higher dimensional knots   A symmetric quandle is a quandle with a good involution. For a knot in
\$R^3\$, a knotted surface in \$R^4\$ or an \$n\$-manifold knot in \$R^{n+2}\$,
the knot symmetric quandle is defined. We introduce the notion of a symmetric
quandle presentation, and show how to get a presentation of a knot symmetric
quandle from a diagram.

4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an