Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exponential bounds of ruin probabilities for non-homogeneous risk models   Lundberg-type inequalities for ruin probabilities of non-homogeneous risk
models are presented in this paper. By employing martingale method, the upper
bounds of ruin probabilities are obtained for the general risk models under
weak assumptions. In addition, several risk models, including the newly defined
united risk model and quasi-periodic risk model with interest rate, are
studied.

12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn