A Markov process $P = \{x_t\}$ proceeds until a random time $\tau$, where the distribution of $\tau$ given $P$ is exp $(-\phi_t)$ for finite additive functional ...
Crane [The ubiquitous Ewens sampling formula (2016) Preprint] provides an excellent review of Ewens' sampling formula (henceforth, ESF), its applications in and connections with various subjects. This ...