I don't know about the redundancy that you mentioned, but this article certainly could be more accessible, and if you can accomplish that aspect, that would be fantastic. It's always seemed to me that the Physics and Mathematics articles are orientated too much towards experts, and other subjects (say Philosophy, History or Politics) that I don't profess to know a great deal about, seem to be easily accessible to me, so much so in fact, that a lot of what forms my philosophical and political beliefs has stemmed from using Wikipedia as a first point of call. I would almost certainly recommend Wikipedia for someone wanting to learn about such subjects, but I wouldn't necessarily recommend it for physics or maths articles at the moment, especially maths heavy articles like this.