Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Gravitational Deflection of Light in F(R)-gravity   The fact that the gravitation could deflect the light trajectory has been
confirmed by a large number of observation data, that is consistent with the
result calculated by Einstein's gravity. F(R)-gravity is the modification of
Einstein's gravity. According to the field equations obtained by the action of
the f(R) form, we get a similar Schwarzschild metric. According to the
condition that four-dimension momenta of the photon return to zero and that of
conservation of covariant momenta, we obtain the equation of motion of the
photon in a specific form of f (R)-gravity. We solve the equation to get the
gravitational deflection angle of light that grazes the surface of sun and the
calculation result is consistent with the experimental observation data.

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The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
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The categories of this paper are: comp-gas
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The categories of this paper are: eess
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
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The categories of this paper are: mtrl-th
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The categories of this paper are: funct-an
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The categories of this paper are: stat
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat