A note on generalized hyperexponential distributions
Carl M. Harris, William G. Marchal, Robert F. Botta · Stochastic Models · 1992
We update earlier results on the relationship of generalized hyperex-ponential (GH) distributions to other types of CDFs in the Coxian family, particularly the phase types. Most specifically, we utilize properties of these Coxian-type distributions to offer new approaches to determining when a given rational transform corresponds to a GH distribution.