Published online by Cambridge University Press: 14 July 2016
Denote by SN, r the set of r-tuples n having non-negative integer components summing to N, and by e i the r-tuple having a one in the ith position and zeros elsewhere. For m and n belonging to SN r, we let P(n , t|m , s) represent the transition probability of moving from state m at time s to state n at time t. Bartlett's conservative process [1] assumes that for n –ei + e j and n ∈ SN, r and Δt > 0 where the λij (t) are non-negative continuous functions of t.