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June 2020 On the boundary components of central streams in the two slopes case
Nobuhiro Higuchi
Kodai Math. J. 43(2): 366-408 (June 2020). DOI: 10.2996/kmj/1594313559

Abstract

In 2004 Oort studied the foliation on the space of $p$-divisible groups. In his theory, special leaves called central streams play an important role. It is still meaningful to investigate central streams, for example, there remain a lot of unknown things on the boundaries of central streams. In this paper, we classify the boundary components of the central stream for a Newton polygon consisting of two segments, where one slope is less than 1/2 and the other slope is greater than 1/2. Moreover we determine the generic Newton polygon of each boundary component using this classification.

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Nobuhiro Higuchi. "On the boundary components of central streams in the two slopes case." Kodai Math. J. 43 (2) 366 - 408, June 2020. https://doi.org/10.2996/kmj/1594313559

Information

Published: June 2020
First available in Project Euclid: 9 July 2020

zbMATH: 07227755
MathSciNet: MR4121368
Digital Object Identifier: 10.2996/kmj/1594313559

Rights: Copyright © 2020 Tokyo Institute of Technology, Department of Mathematics

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Vol.43 • No. 2 • June 2020
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