Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gap Symmetry and Thermal Conductivity in Nodal Superconductors   Here we consider the universal heat conduction and the angular dependent
thermal conductivity in the vortex state for a few nodal superconductors. We
present the thermal conductivity as a function of impurity concentration and
the angular dependent thermal conductivity in a few nodal superconductors. This
provides further insight in the gap symmetry of superconductivity in
Sr$_2$RuO$_4$ and UPd$_2$Al$_3$.

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The categories of this paper are: eess
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
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The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
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The categories of this paper are: stat