Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mapping and Embedding of Two Metrics Associated with Dark Matter, Dark
  Energy, and Ordinary Matter   In this paper we build a mapping between two different metrics and embed them
in a flat manifold. One of the metrics represents the ordinary matter, and the
other describes the dark matter, the dark energy, and the particle-antiparticle
asymmetry. The latter was obtained in a recent paper. For the mapping and
embedding, we use two new formalisms developed and presented in two previous
papers, Mapping Among Manifolds and, Conformal Form of Pseudo-Riemannian
Metrics by Normal Coordinate Transformations, which was a generalization of the
Cartan's approach of Riemannian normal coordinates.

12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph