Hold Date

2009-10-21 16:40〜2009-10-21 17:40

Place

Ito Campus, Faculty of Mathematics building, seminar room 3

Object person

　

Speaker

Michel Duflo (Paris)

Let $L$ be a Lie algebra (or a Lie super-algebra) over a commutative ring$R$. The PBW theorems provide, under suitable hypotheses, isomorphisms of coalgebras between the symmetric algebra and the enveloping algebra of $L$.
In this lecture, I consider some  functorial aspects, and some explicit formulas, for these isomorphisms.