Definitions: Recall that we let , and defined a bilinear form on by .
A linear map is a Lorentz transformation if for any , we have . 450 more words
It’s been a while since I last blogged; the reason, of course, is that I felt that I couldn’t post anything new before completing my series of posts on Kähler groups; but I wasn’t quite ready to write my last post, because I wanted to get to the bottom of a few analytic details in the notorious Gromov-Schoen paper. 357 more words