nLab
formal multiplicative group

Contents

Definition

The formal group of the multiplicative group .

Its formal group law f(x,y)R[[x,y]]f(x,y) \in R[ [x,y] ] is

f(x,y)=x+y+xy, f(x,y) = x + y + x y \,,

Examples

The formal group law of topological K-theory which is induced by its canonical complex orientation is the multiplicative formal group law. See at topological K-theory the section Complex orientation and Formal group law

Last revised on June 6, 2017 at 08:08:18. See the history of this page for a list of all contributions to it.