Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Beltrami Model of De Sitter Space: From Snyder's quantized
  space-time to de Sitter invariant relativity   In terms of the Beltrami model of de Sitter space we show that there is an
interchangeable relation between Snyder's quantized space-time model in
dS-space of momenta at the Planck length $\ell_P=(G\hbar c^{-3})^{1/2}$ and the
dS-invariant special relativity in dS-spacetime of radius
$R\simeq(3\Lambda^{-1})^{1/2}$, which is another fundamental length related to
the cosmological constant. Here, the cosmological constant $\Lambda$ is
regarded as a fundamental constant together with the speed of light $c$, Newton
constant $G$ and Planck constant $\hbar$. Furthermore, the physics at two
fundamental scales of length, the \dS-radius $R$ and the Planck length
$\ell_P$, should be dual to each other and linked via the gravity with local
dS-invariance characterized by a dimensionless coupling constant $g= \sqrt{3}
\ell_P/R\simeq(G\hbar c^{-3}\Lambda)^{1/2}\sim 10^{-61}$.

15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs