Module 3:Branching process, Application of Markov chains, Markov Processes with discrete and                 continuous state space
  Lecture 10:Application of Markov Chains
 

 

Definition

Consider  are the random variables that denote the size of the 0th generation, 1st generation, etc respectively, Figure 3.1. Also assume that an individual in any generation produce  number of off-springs and the probability be , . It is quite simple to note that . Then the sequence, , i.e.,  is the Galton Watson branching process.

In the Galton Watson branching process let us assume , where as per definition  is the total number of progeny upto to the  generation.

Then:

  •  if
  •  if
  •  if  and