Last part of a url (after the "/")

I want the last number after the "/". How can I do that?

"http://arxiv.org/abs/math/0208009v1"

I just want 0208009v1

I want to import multiple links from the following:

{{"http://arxiv.org/abs/math/0208009v1"}, \{"http://arxiv.org/abs/0905.0227v1"}, \{"http://arxiv.org/abs/0907.5143v2"}, \{"http://arxiv.org/abs/math/0509348v1"}, \{"http://arxiv.org/abs/math/0608711v2"}, \{"http://arxiv.org/abs/math-ph/0002018v2"}}

I just want the last number in the following links. How would that work?