Sparks, Joshua; Mahmoud, Hosam M. - In: Statistics & Probability Letters 83 (2013) 1, pp. 265-271
The Pólya process is obtained by embedding the usual (discrete-time) Pólya urn scheme in continuous time. We study the class of tenable Pólya processes of white and blue balls with zero balance (no change in n, the total number of balls, over time). This class includes the...