Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fractal features in accretion discs   Fractal concepts have been introduced in the accretion disc as a new feature.
Due to the fractal nature of the flow, its continuity condition undergoes
modifications. The conserved stationary fractal flow admits only saddle points
and centre-type points in its phase portrait. Completely analytical solutions
of the equilibrium point conditions indicate that the fractal properties enable
the flow to behave like an effective continuum of lesser density, and
facilitates the generation of transonicity. However, strongly fractal flows
inhibit multitransonicity from developing. The mass accretion rate exhibits a
fractal scaling behaviour, and the entire fractal accretion disc is stable
under linearised dynamic perturbations.

10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th