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math.AG2020
Milnor excision for motivic spectra
Elden Elmanto, Marc Hoyois, Ryomei Iwasa +1
We prove that the -category of motivic spectra satisfies Milnor excision: if is a morphism of commutative rings sending an ideal isomorphically onto a…
math.AG2020
Cdh descent, cdarc descent, and Milnor excision
Elden Elmanto, Marc Hoyois, Ryomei Iwasa +1
We give necessary and sufficient conditions for a cdh sheaf to satisfy Milnor excision, following ideas of Bhatt and Mathew. Along the way, we show that the cdh infinity-topos of a…