The surplus process of the absolute ruin model is a PDMP.

In this paper we consider the absolute ruin in the risk processes with interest.

Absolute ruin occurs at this situation.

The ruin probability of double compound negative binomial risk model;

On ruin probability for a generalized Cox insurance risk model with perturbation;

The ruin probability of a bankrupt problem with deductible;

In this paper,we study the probability of ruin in risk model with two Cos processes perturbed by diffusion and risk model with two Poisson processes perturbed by diffusion on the assumption that the limit of ruin is variation.

By the way, some results about the distribution of the deficit at ruin and the probability of ruin are derived.

A Mathematical Model Analysis on the Impact of the Capital Adequacy Requirement on Bankruptcy Probability;

The upper boundary of bankruptcy probability is obtained with martingale approach,further considering the influence of claim number on insurance income and obtaining its improved model and re.

By the method of Monte Carlo simulation and polymeric risk model,the paper resolves and analyses the bankruptcy probability under different scenarios,finds that the initial reserve has a big influence on the bankruptcy probability in the beginning period,and the bankruptcy probability with different initial reserves in the limited period will gradually reach the ultimate bankruptcy probability.