Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Regularity of Solutions of the Nonlinear Sigma Model with Gravitino   We propose a geometric setup to study analytic aspects of a variant of the
super symmetric two-dimensional nonlinear sigma model. This functional extends
the functional of Dirac-harmonic maps by gravitino fields. The system of
Euler--Lagrange equations of the two-dimensional nonlinear sigma model with
gravitino is calculated explicitly. The gravitino terms pose additional
analytic difficulties to show smoothness of its weak solutions which are
overcome using Rivi\`ere's regularity theory and Riesz potential theory.

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The categories of this paper are: nlin
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The categories of this paper are: alg-geom
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The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
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The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: cs
3
The categories of this paper are: physics