Articles with "group schemes" as a keyword



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Reduced group schemes as iterative differential Galois groups

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Published in 2019 at "Israel Journal of Mathematics"

DOI: 10.1007/s11856-020-2019-7

Abstract: This article is on the inverse Galois problem in Galois theory of linear iterative differential equations in positive characteristic. We show that it has an affirmative answer for reduced algebraic group schemes over any iterative… read more here.

Keywords: schemes iterative; iterative differential; reduced group; galois ... See more keywords
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On the fundamental group schemes of certain quotient varieties

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Published in 2021 at "Tohoku Mathematical Journal"

DOI: 10.2748/tmj.20200727

Abstract: In \cite{armstrong}, M. Armstrong proved a beautiful result describing fundamental groups of quotient spaces. In this paper we prove an analogue of Armstrong's theorem in the setting of $F$-divided \cite{dS07} and essentially finite \cite{Nori76} fundamental… read more here.

Keywords: certain quotient; group schemes; schemes certain; fundamental group ... See more keywords