We study a discrete-time interaction risk model with delayed claims within the framework of the compound binomial model. Using the technique of generating functions, we derive both a recursive formula and a defective renewal equation for the expected discounted penalty function. As applications,...

We study a discrete-time interaction risk model with delayed claims within the framework of the compound binomial model. Using the technique of generating functions, we derive both a recursive formula and a defective renewal equation for the expected discounted penalty function. As applications,...

In this paper, we study a stationary ARCH(q) model with parameters x(0),x(1), x(2), . . ., x(q). It is known that the model requires all parameters to be non-negative, but sometimes the usual algorithm based on Newton-Raphson's method leads us to obtain some negative solutions. So this study...

Organic-inorganic hybrid perovskite solar cells (PSCs) are the prime candidates for solar energy conversion technologies owing to their superior photoelectric performance and low-temperature processibility. The electron transport layer (ETL) is one of the most important compositions for...

Graphene has great potential in aerospace applications but is inevitably influenced by the high-speed atomic oxygen (AO) impact on low earth orbit. So far, the understanding of the impact interaction between AO and graphene as well as the protection mechanisms in the literature are still...