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arXiv · 1907.13562

The geometry of filtrations

Tasos Moulinos
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Abstract

We display a symmetric monoidal equivalence between the stable $\infty$-category of filtered spectra, and quasi-coherent sheaves on $\mathbb{A}^1 / \mathbb{G}_m$, the quotient in the setting of spectral algebraic geometry, of the flat affine line by the canonical action of the flat multiplicative group scheme. Via a Tannaka duality argument, we identify the underlying spectrum and associated graded functors with pull-backs of quasi-coherent sheaves along certain morphisms of stacks.

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Tasos Moulinos. 2019-07-31. The geometry of filtrations. https://doi.org/10.1112/blms.12512

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