Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A generalized Schroedinger equation for loop quantum cosmology   A temporally discrete Schroedinger time evolution equation is proposed for
isotropic quantum cosmology coupled to a massless scalar source. The approach
employs dynamically determined intrinsic time and produces the correct
semiclassical limit.

24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph