Ultraviolence is the only defence against zombies

We already knew, from the infallible source of George Romero, that ultraviolence is the only defence against zombies. Well, now it's been mathematically proven. My good friend (and invaluable IT support guru) James pointed me in the direction of this article in The Register.

Professor Robert Smith? of Ottawa University, an infectious-diseases specialist, has published an authoritative mathematical model of zombie plagues. Firstly, let me point out that this profs name is actually Robert Smith?, q