Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A remark on a construction of D.S. Asche   It is shown that a classical construction of D.S. Asche of 72 equiangular
lines in the 19 dimensional Euclidean space contains a subset of 54 equiangular
lines embedded in an 18 dimensional subspace.

13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat