Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Loop quantum cosmology of the Bianchi I model: complete quantization   We complete the canonical quantization of the vacuum Bianchi I model within
the improved dynamics scheme of loop quantum cosmology, characterizing the
Hilbert structure of the physical states and providing a complete set of
observables acting on them. In order to achieve this task, it has been
essential to determine the structure of the separable superselection sectors
that arise owing to the polymeric quantization, and to prove that the initial
value problem obtained when regarding the Hamiltonian constraint as an
evolution equation, interpreting the volume as the evolution parameter, is
well-posed.

17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph