Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasi-isometric co-Hopficity of non-uniform lattices in rank-one
  semi-simple Lie groups   We prove that if $G$ is a non-uniform lattice in a rank-one semi-simple Lie
group $\ne Isom(\H^2_\R)$ then $G$ is quasi-isometrically co-Hopf. This means
that every quasi-isometric embedding $G\to G$ is coarsely onto and thus is a
quasi-isometry.

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The categories of this paper are: plasm-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an