Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The rigid symmetries of bosonic D-strings   We analyse the classical symmetries of bosonic D-string actions and
generalizations thereof. Among others, we show that the simplest actions of
this type have infinitely many nontrivial rigid symmetries which act
nontrivially and nonlinearly both on the target space coordinates and on the
U(1) gauge field, and form a Kac-Moody version of the Weyl algebra (= Poincare
algebra + dilatations).

15
The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph