GR Math Seminar: "The graded Lie algebra of general relativity "

Wed, 04/08/2015 - 14:00
Michael Reiterer (IAS and Penn)

Several problems can be written as [x,x]=0 where the unknown x
is an element of degree one in a graded Lie algebra. I show that general
relativity (the Einstein vacuum equations) can also be put in this form.
Using this language, I discuss formal perturbation theory; gauge-fixing;
and some open problems. Familiarity with general relativity is not
assumed, in fact this talk can be taken to be some kind of introduction
to general relativity. Based on arxiv.org/abs/1412.5561. Joint work with
Eugene Trubowitz.