Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hessian estimates for the sigma-2 equation in dimension three   We derive a priori interior Hessian estimates for the special Lagrangian
equation $\sigma_{2}=1$ in dimension three.

14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int