Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rotation in a Generalised Dirac's Universe   The extension of Dirac's LNH to cover cosmological and fine-structure
time-varying "constants", and the rotation of the Universe, is here analysed,
including a "derivation" of the angular speed of the present Universe, and of
the inflationary phase. Criticizable points on the present calculation, are
clarified.

36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat