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arXiv · 1701.06518

On the structure of affine flat group schemes over discrete valuation rings

Nguyen Dai Duong·Phung Ho Hai·João Pedro P. dos Santos
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Abstract

We study affine group schemes over a discrete valuation ring $R$ using two techniques: Neron blowups and Tannakian categories. We employ the theory developed to define and study differential Galois groups of $\mathcal D$-modules on a scheme over a $R$. This throws light on how differential Galois groups of families degenerate.

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Nguyen Dai Duong, Phung Ho Hai, João Pedro P. dos Santos. 2017-05-31. On the structure of affine flat group schemes over discrete valuation rings. https://doi.org/10.2422/2036-2145.201509_004

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