Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modified Gauss-Bonnet Gravity with Radiating Fluids   The main purpose of this paper is to investigates structure scalars in the
context of $f(\mathcal{G}, T)$ gravity, where $\mathcal{G}$ is the Gauss-Bonnet
invariant and $T$ is the trace of stress energy tensor. For this aim, we have
considered the spherically symmetric spacetime and dissipative anisotropic
fluid coupled with radiation and heat ejecting shearing matter distributions.
We have found these scalar variables by orthogonally decomposing the Riemann
curvature tensor in $f(\mathcal{G}, T)$ gravity. Moreover, the evolution
equations of shear and expansion are also developed with the help of these
scalar functions. We have also analyzed these scalars by taking constant
$\mathcal{G}$ and $T$ for dust cloud. The physical behavior of structure
scalars for radiating matter distributions has been examined in the presence of
modified gravity. It is shown that the evolutionary stages of relativistic
stellar structures can be explored via modified scalar functions.

33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas