Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On The Topological Nature of the Cosmological Constant   It is shown that topological changes in space-time are necessary to make
General Relativity compatible with the Newtonian limit and to solve the
hierarchy of the fundamental interactions. We detail how topology and
topological changes appear in General Relativity and how it leaves an
observable footprint in space-time. In cosmology we show that such topological
observable is the cosmic radiation produced by the acceleration of the
universe. The cosmological constant is a very particular case which occurs when
the expansion of the universe into the vacuum occurs only in the direction of
the cosmic time flow.

12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg