Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Origin of Structure in the Universe: Quantum Cosmology Reconsidered   Based on a more careful canonical analysis, we motivate a reduced
quantization - in the sense of superspace quantization - of slightly
inhomogeneous cosmology in place of the Dirac quantization in the existing
literature, and provide it in the vacuum case. This is attained through
consideration of configuration space geometries at various levels of reduction.
Some of these have the good fortunate of being flat. Geometrically natural
coordinates for these are interpreted in terms of the original redundant
formulation's well-known mode expansion coefficients.

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The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
2
The categories of this paper are: math