Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Algebra of non-local charges in the O(N) WZNW model at and beyond
  criticality   We derive the classical algebra of the non-local conserved charges in the
O(N) WZNW model and analyze its dependence on the coupling constant of the
Wess-Zumino term. As in the non-linear sigma model, we find cubic deformations
of the O(N) affine algebra. The surprising result is that the cubic algebra of
the WZNW non-local charges does not obey the Jacobi identity, thus opposing our
expectations from the known Yangian symmetry of this model.

13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin