Higher frames and $G$-displays

Eike Lau

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arXiv · 1809.09727

Higher frames and $G$-displays

Eike Lau

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Abstract

Deformations of ordinary varieties of K3 type can be described in terms of displays by recent work of Langer-Zink. We extend this to the general (non-ordinary) case using displays with $G$-structure for a reductive group $G$. As a basis we suggest a modified definition of the tensor category of displays and variants which is similar to the Frobenius gauges of Fontaine-Jannsen.

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Eike Lau. 2018-09-25. Higher frames and $G$-displays. https://arxiv.org/abs/1809.09727

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