An increased risk of credit-related exposures and the contagion effect of the recent global financial crisis have led to stringent regulations and the need for accurate credit risk models. Under the ...

We show that finite-rank perturbations of certain random matrices fit in the framework of infinitesimal (type-B) asymptotic freeness. This can be used to explain the appearance of free harmonic ...

In stage-based demography, animals are often categorized into size (or mass) classes, and size-based probabilities of surviving and changing mass classes must be estimated before demographic analyses ...