Recent content by derekwise

Wow, that's a great deal! I really should buy that book too, given the amount of advertising I seem to be doing for it. I've had it checked out from the UCR library for probably 2 years. :smile: Unfortunately, the amazon sale seems to be over... -DeReK

MacDowell-Mansouri gravity and Cartan Geometry Hi! For anyone still interested in how Cartan geomtry is about "rolling a homogeneous space on a manifold", I explain a bunch of this in my new paper: MacDowell-Mansouri gravity and Cartan Geometry http://arxiv.org/abs/gr-qc/0611154 -DeReK

a paper on this subject Hi! Interesting conversation you all have been having here. This is a subject very near to my heart (i.e. my thesis):!) , and I'd love to join in! But I can't really, because I'm too busy trying to finish up a paper on this stuff before my advisor gives away all...

Actually, we changed "loops" to "strings" because the paper originally used the term "loops" to mean two distinct things -- loop-like topological defects (now called a strings in the paper), and based loops around which the holonomy of a connection is taken. It is the latter of these that...