Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Absence of the Kasner singularity in the effective dynamics from loop
  quantum cosmology   In classical general relativity, the generic approach to the initial
singularity is usually understood in terms of the BKL scenario. In this
scenario, along with the Bianchi IX model, the exact, singular, Kasner solution
of vacuum Bianchi I model also plays a pivotal role. Using an effective
classical Hamiltonian obtained from loop quantization of vacuum Bianchi I
model, exact solution is obtained which is non-singular due to a discreteness
parameter. The solution is parameterized in exactly the same manner as the
usual Kasner solution and reduces to the Kasner solution as discreteness
parameter is taken to zero. At the effective Hamiltonian level, the avoidance
of Kasner singularity uses a mechanism distinct from the `inverse volume'
modifications characteristic of loop quantum cosmology.

1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an