Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The electron densities of pseudorelativistic eigenfunctions are smooth
  away from the nuclei   We consider a pseudorelativistic model of atoms and molecules, where the
kinetic energy of the electrons is given by $\sqrt{p^2+m^2}-m$. In this model
the eigenfunctions are generally not even bounded, however, we prove that the
corresponding one-electron densities are smooth away from the nuclei.

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The categories of this paper are: astro-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: stat
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol