Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on "A study of phantom scalar field cosmology using Lie and
  Noether symmetries" [Int. J. Mod. Phys. D 25 (2016) 1650051]   We show that the recent results of \ [Int. J. Mod. Phys. D 25 (2016) 1650051]
on the application of Lie/Noether symmetries in scalar field cosmology are
well-known in the literature while the problem could have been solved easily
under a coordinate transformation. That follows from the property, that the
admitted group of invariant transformations of dynamical system is independent
on the coordinate system.

11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph