Formal additive group ( $G_{a}$ )

The formal additive group has law

F_{a} (X, Y) = X + Y

. Its multiplication-by-

n

[n]_{a} (X) = n X

.

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 Incoming links (2)

Exponential isomorphism between the additive and multiplicative formal groups
Past exam of the mathematics course of the University of Cambridge / 2021 / iii / Paper 136 / 5 / b / Solution

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