Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: E_(10), BE_(10) and Arithmetical Chaos in Superstring Cosmology   It is shown that the never ending oscillatory behaviour of the generic
solution, near a cosmological singularity, of the massless bosonic sector of
superstring theory can be described as a billiard motion within a simplex in
9-dimensional hyperbolic space. The Coxeter group of reflections of this
billiard is discrete and is the Weyl group of the hyperbolic Kac-Moody algebra
E$_{10}$ (for type II) or BE$_{10}$ (for type I or heterotic), which are both
arithmetic. These results lead to a proof of the chaotic (``Anosov'') nature of
the classical cosmological oscillations, and suggest a ``chaotic quantum
billiard'' scenario of vacuum selection in string theory.

8
The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th