Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The relativity of inertia and reality of nothing   We first see that the inertia of Newtonian mechanics is absolute and
troublesome. General relativity can be viewed as Einstein's attempt to remedy,
by making inertia relative, to matter---perhaps imperfectly though, as at least
a couple of freedom degrees separate inertia from matter in his theory. We
consider ways the relationist (for whom it is of course unwelcome) can try to
overcome such undetermination, dismissing it as physically meaningless,
especially by insisting on the right transformation properties.

15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
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The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
9
The categories of this paper are: nlin