Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On de Sitter Invariant Special Relativity and Cosmological Constant as
  Origin of Inertia   Weakening the Euclidean assumption in special relativity and the
coordinate-independence hypothesis in general relativity for the de Sitter
space, we propose a de Sitter invariant special relativity with two universal
constants of speed $c$ and length $R$ based on the principle of relativity and
the postulate of universal constants $c$ and $R$ on de Sitter space with
Beltrami metric. We also propose a postulate on the origin of the inertial
motions and inertial systems as a base of the principle of relativity. We show
that the Beltrami-de Sitter space provides such a model that the origin of
inertia should be determined by the cosmological constant $\Lambda$ if the
length $R$ is linked with $\Lambda$. In addition, via the `gnomonic' projection
the uniform straight-line motion on Beltrami-de Sitter space is linked with the
uniform motion along a great `circle' on de Sitter space embedded in 5-d
Minkowski space.

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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
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The categories of this paper are: math
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
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The categories of this paper are: stat
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The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
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The categories of this paper are: acc-phys