Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Local well-posedness in Sobolev spaces for first-order conformal causal
  relativistic viscous hydrodynamics   In this manuscript, we study the theory of conformal relativistic viscous
hydrodynamics introduced in arXiv:1708.06255, which provided a causal and
stable first-order theory of relativistic fluids with viscosity. The local
well-posedness of its equations of motion has been previously established in
Gevrey spaces. Here, we improve this result by proving local well-posedness in
Sobolev spaces.

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The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
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The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
1
The categories of this paper are: cs
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The categories of this paper are: hep-ex