Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasi-arithmeticity of lattices in PO(n,1)   We show that the non-arithmetic lattices in PO(n,1) of Belolipetsky and
Thomson (2011), obtained as fundamental groups of closed hyperbolic manifolds
with short systole, are quasi-arithmetic in the sense of Vinberg, and, by
contrast, the well-known non-arithmetic lattices of Gromov and
Piatetski-Shapiro are not quasi-arithmetic. A corollary of this is that there
are, for all $n\geq 2$, non-arithmetic lattices in PO(n,1) that are not
commensurable with the Gromov--Piatetski-Shapiro lattices.

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The categories of this paper are: cmp-lg
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The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: bayes-an
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
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The categories of this paper are: physics
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The categories of this paper are: chem-ph
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The categories of this paper are: q-alg
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The categories of this paper are: dg-ga