Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mathematical problems in higher order gravity and cosmology   We discuss the issue of motivating the analysis of higher order gravity
theories and their cosmologies and introduce a rule which states that these
theories may be considered as a vehicle for testing whether certain properties
may be of relevance to quantum theory. We discuss the physicality issue arising
as a consequence of the conformal transformation theorem, the question of
formulating a consistent first order formalism of such theories and also the
isotropization problem for a class of generalized cosmologies. We point out
that this field may have an important role to play in clarifying issues arising
also in general relativity.

8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org