A note on logarithmic growth Newton polygons of $p$-adic differential equations

Shun Ohkubo

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arXiv · 1312.7789

A note on logarithmic growth Newton polygons of $p$-adic differential equations

Shun Ohkubo

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Abstract

In this paper, we answer a question due to Y. Andr\'e related to B. Dwork's conjecture on a specialization of the logarithmic growth of solutions of $p$-adic linear differential equations. Precisely speaking, we explicitly construct a $\nabla$-module $M$ over $\mathbb{Q}_p[[X]]_0$ of rank 2 such that the left endpoint of the special log-growth Newton polygon of $M$ is strictly above the left endpoint of the generic log-growth Newton polygon of $M$.

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Shun Ohkubo. 2013-12-30. A note on logarithmic growth Newton polygons of $p$-adic differential equations. https://arxiv.org/abs/1312.7789

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