Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasiperiodic packings of two-shell decagonal clusters   We present some mathematical results concerning the strip projection method
and a computer program for generating quasiperiodic packings of decagonal two
shell-clusters.

30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess