Convergence Of PGFS 2

Question 1

What is E0[H0 * 1(H0< inf)

Answer 1

E0[H0 * 1(H0<inf) = g0’(1-)

Question 2

What is the reflection principle

Answer 2

Reflection principle is
Number is SRW paths going from (m,x) to (n,y) and intersecting x-axis
= #((m,x) to (n,-y))
= ((m,-x) to (n,y))