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“Geometric” vs Homotopical completion

In the affine case, this is more-or-less proved in [Bhargav Bhatt, Completions and derived de Rham cohomology]. More precisely, Kathryn Hess' completion is more akin to Carlsson's Adams completion, ...
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“Geometric” vs Homotopical completion

Yes, there's a way to relate the two. First, it's helpful to think of both in terms of universal properties. Since geometric completion is a fiber product, it's a pullback. Meanwhile, the homotopical ...
David White's user avatar
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