Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Post-Newtonian parameters in the tensor-vector-scalar theory   We investigate post-Newtonian parameters in the tensor-vector-scalar (TeVeS)
theory in a general setting while previous researches have been restricted to
spherically symmetric cases. Based on the assumption that both the physical and
Einstein metrics have Minkowski metric at the zeroth order, we show $\gamma =1$
as in the previous researches. We find two remarkable things for other
parameters. The first is the value $\beta =1$ while it has been reported that
$\beta\neq 1$ for the case when the vector field is not purely timelike. This
discrepancy occurs from the above assumption which is natural as a starting
point. The second is the result that the Newtonian potential must be static to
be consistent with the vector equation. As a result, we cannot determine
$\alpha_{1}$ and $\alpha_{2}$. We consider that it is related to the
instability against linear perturbation and occurrence of caustic singularities
for various initial perturbations which have been reported recently.

16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom