A frog is in a pond with 5 water lilies numbered from 1 to 5. With exponential rate 1, the frog leaves its current water lily, chooses a new one uniformly among the four others and jumps to it. We assume the frog starts from lily 1. Let X(t) be the number of the lily where the frog is at time t. a. Admitting that X(t) is a continuous-time Markov chain, give its parameters (i.e. the v; and pij of the course). No proof is required. b. Let pij(t) = P(X(t) = j|X(0) = 1). Explain why P12(t) = P13(t) = P14(t) = P15(t) (no computations required). c. Write the backward Chapman-Kolmogorov equation, and prove that d. 15 Pu(t)=-Pu(t). 4 Solve this equation to compute pii(t).
A frog is in a pond with 5 water lilies numbered from 1 to 5. With exponential rate 1, the frog leaves its current water lily, chooses a new one uniformly among the four others and jumps to it. We assume the frog starts from lily 1. Let X(t) be the number of the lily where the frog is at time t. a. Admitting that X(t) is a continuous-time Markov chain, give its parameters (i.e. the v; and pij of the course). No proof is required. b. Let pij(t) = P(X(t) = j|X(0) = 1). Explain why P12(t) = P13(t) = P14(t) = P15(t) (no computations required). c. Write the backward Chapman-Kolmogorov equation, and prove that d. 15 Pu(t)=-Pu(t). 4 Solve this equation to compute pii(t).
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:Problem 2
A frog is in a pond with 5 water lilies numbered from 1 to 5. With exponential rate 1, the frog
leaves its current water lily, chooses a new one uniformly among the four others and jumps to it.
We assume the frog starts from lily 1. Let X(t) be the number of the lily where the frog is at time
t.
a. Admitting that X(t) is a continuous-time Markov chain, give its parameters (i.e. the v; and pij
of the course). No proof is required.
b. Let pij(t) = P(X(t) = j|X(0) = 1). Explain why P12(t) = P13(t)
P14(t) = P15(t) (no
computations required).
c. Write the backward
d.
Chapman-Kolmogorov equation, and prove that
5
1
4
Solve this equation to compute p₁i(t).
P₁1(t)
=
Pui(t).
=
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