Abstract
We will give an explicit description of non-commutative extensions of the additive group scheme (resp. the additive formal group scheme) by the multiplicative group scheme (resp. the multiplicative formal group scheme) over an $F_{p}$-algebra.
Citation
Yuki Haraguchi. "On non-commutative extensions of $G_{a}$ by $G_{m}$ over an $F_{p}$ -algebra." Tsukuba J. Math. 29 (2) 405 - 435, December 2005. https://doi.org/10.21099/tkbjm/1496164964
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