2. A Markov Chain with a finite number of states is said to be regular if...
2. A Markov Chain with a finite number of states is said to be regular if there exists a non negative integer n such that for any i, J E S, Fini > 0 for any n-มิ. (a) Prove that a regular Markov Chain is irreducible. (b) Prove that a regular Markov Chain is aperiodic (c) Prove that if a Markov Chain is irreducible and there exists k E S such that Pk0 then it is regular (d) Find an...
Exercise 5.10. Let P be the transition matrix of a Markov chain (Xt)120 on a finite state space Ω. Show that the following statements are equivalent: (i) P is irreducible and aperiodic (ii) There exists an integer r 0 such that for all i,je Ω, (88) (ii) There exists an integer r 20 such that every entry of Pr is positive.
Suppose that we have a finite irreducible Markov chain Xn with stationary distribution π on a state space S. (a) Consider the sequence of neighboring pairs, (X0, X1), (X1, X2), (X2, X3), . . . . Show that this is also a Markov chain and find the transition probabilities. (The state space will be S ×S = {(i,j) : i,j ∈ S} and the jumps are now of the form (i, j) → (k, l).) (b) Find the stationary distribution...
2. The transition probabilities for several temporally homogeneous Markov chains with states 1,.,n appear below. For each: . Sketch a small graphical diagram of the chain (label the states and draw the arrows, but you do not need to label the transition probabilities) . Determine whether there are any absorbing states, and, if so, list them. » List the communication classes for the chain . Classify the chain as irreducible or not . Classify each state as recurrent or transient....
2. The transition probabilities for several temporally homogeneous Markov chains with states 1,.,n appear below. For each: . Sketch a small graphical diagram of the chain (label the states and draw the arrows, but you do not need to label the transition probabilities) . Determine whether there are any absorbing states, and, if so, list them. » List the communication classes for the chain . Classify the chain as irreducible or not . Classify each state as recurrent or transient....
Define a Markov Chain on S = {0, 1, 2, 3, . . .} with transition probabilities p0,1 = 1, pi,i+1 = 1 − pi,i−1 = p, i ≥ 1 with 0 < p < 1. (a) Is the MC irreducible? (b) For which values of p the Markov Chain is reversible? 6. Define a Markov Chain on S 0, 1,2, 3,...) with transition probabilities i>1 with 0<p<. (a) Is the MC irreducible? (b) For which values of p the...
(a) Is the MC irreducible? (b) For which values of p the Markov Chain is reversible? 6. Define a Markov Chain on S-10,1,2,3,...) with transition probabilities Po,1 pi,i+1 1 -pi,i-1 = p, i i>1 1 = with 0<p<
2. A Markov chain is said to be doubly stochastic if both the rows and columns of the transition matrix sum to 1. Assume that the state space is {0, 1,....m}, and that the Markov chain is doubly stochastic and irreducible. Determine the stationary distribution T. (Hint: there are two approaches. One is to solve T P and ( 1 in general for doubly stochastic matrices. The other is to first solve a few examples, then make an educated guess...
2. A Markov chain is said to be doubly stochastic if both the rows and columns of the transition matrix sum to 1. Assume that the state space is {0, 1,....m}, and that the Markov chain is doubly stochastic and irreducible. Determine the stationary distribution T. (Hint: there are two approaches. One is to solve T P and ( 1 in general for doubly stochastic matrices. The other is to first solve a few examples, then make an educated guess...
7. Define a Markov Chain on S-0,1,2,3,... with transition probabilities Pi,i+1 with 0<p < 1/2. Prove that the Markov Chain is reversible.