Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The effects of environmental disturbances on tumor growth   In this study, the analytic expressions of the steady probability
distribution of tumor cells were established based on the steady state solution
to the corresponding Fokker-Planck equation. Then, the effects of two
uncorrelated white noises on tumor cell growth were investigated. It was found
that the predation rate plays the main role in determining whether or not the
noise is favorable for tumor growth.

24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ