Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lyapunov spectrum of ball quotients with applications to
  commensurability questions   We determine the Lyapunov spectrum of ball quotients arising from cyclic
coverings. The computations are performed by rewriting the sum of Lyapunov
exponents as ratios of intersection numbers and by the analysis of the period
map near boundary divisors. As a corollary, we complete the classification of
commensurability classes of all presently known non-arithmetic ball quotients.

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The categories of this paper are: cond-mat
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The categories of this paper are: astro-ph
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ex
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The categories of this paper are: solv-int
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The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: adap-org