I´m actually working with principal bundles and I´m looking for particular examples. For instance, a principal bundle of structure group $Gl(n)$ is just a vector bundle. I´m wondering what happens if we consider for instance $G=\mathbb{G}_{a}$ the additive group. What is a principal bundle of structure group $\mathbb{G}_{a}$? Is there any relation with principal bundles over projective spaces? Thank you for your time
2026-03-25 17:43:38.1774460618
Examples of principal bundles
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