Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Symmetric isostatic frameworks with $\ell^1$ or $\ell^\infty$ distance
  constraints   Combinatorial characterisations of minimal rigidity are obtained for
symmetric 2-dimensional bar-joint frameworks with either $\ell^1$ or
$\ell^\infty$ distance constraints. The characterisations are expressed in
terms of symmetric tree packings and the number of edges fixed by the symmetry
operations. The proof uses new Henneberg-type inductive construction schemes.

9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
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The categories of this paper are: math-ph
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas