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arXiv · 1912.08091

Extensions of filtered Ogus structures

Bruno Chiarellotto·Nicola Mazzari
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Abstract

We compute the Ext group of the (filtered) Ogus category over a number field $K$. In particular we prove that the filtered Ogus realisation of mixed motives is not fully faithful.

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Bruno Chiarellotto, Nicola Mazzari. 2019-12-16. Extensions of filtered Ogus structures. https://doi.org/10.1007/s10485-019-09576-8

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