Well, I'm against software patents pretty much as much as anyone here, as you can verify from my comment history, but describing the mathematics of an array isn

Well, I'm against software patents pretty much as much as anyone here, as you can verify from my comment history, but describing the mathematics of an array isn't the same as the array itself. The patent isn't violated until you start executing that mathematics of a Judy Array on a running computer. Otherwise, you could violate a patent by just talking about it.