1. ## random walk

Hi,
Is there a special term (or name) for a one dimensional random walk on the Naturals only? I mean a random walk that you start at a certain point on N and move right with probability p and left with probability 1-p and when you get to zero you must go right on the next turn?

thanks!

2. Originally Posted by nntk
Hi,
Is there a special term (or name) for a one dimensional random walk on the Naturals only? I mean a random walk that you start at a certain point on N and move right with probability p and left with probability 1-p and when you get to zero you must go right on the next turn?

thanks!
What about an (asymmetric) simple random walk on $\mathbb{N}$ with reflection at 0?