Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Energy-momentum conservation laws in Finsler/Kawaguchi Lagrangian
  formulation   We reformulate the standard Lagrangian formalism to a reparameterisation
invariant Lagrangian formalism by means of Finsler and Kawaguchi geometry. In
our formalism, various types of symmetries that appears in theories of physics
are expressed geometrically by symmetries of Finsler (Kawaguchi) metric, and
the conservation law of energy-momentum is a part of Euler-Lagrange equations.
The application to scalar field, Dirac field, electromagnetic field and general
relativity coupled to perfect fluid (added: ver.3) are discussed. By this
formalism, we try to propose an alternative definition of energy-momentum
current of gravity.

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The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: nlin
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The categories of this paper are: adap-org
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The categories of this paper are: patt-sol
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
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The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: q-alg
1
The categories of this paper are: cs