Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Lagrangian formulation of relativistic Israel-Stewart hydrodynamics   We rederive relativistic hydrodynamics as a Lagrangian effective theory using
the doubled coordinates technique, allowing us to include dissipative terms. We
include Navier-Stokes shear and bulk terms, as well as Israel-Stewart
relaxation time terms, within this formalism. We show how the inclusion of
shear viscosity, and the requirement of a bounded energy-momentum "vacuum",
forces the inclusion of the Israel-Stewart term into the theory, thereby
providing a justification for the origin and uniqueness of these terms.

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The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
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The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: supr-con
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: math
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The categories of this paper are: nlin
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: chao-dyn