Units in Grothendieck-Witt rings and A1-spherical fibrations
Abstract
In this note, we show that the units in Grothendieck-Witt rings extend to an unramified strictly A1-invariant sheaf of abelian groups on the category of smooth schemes. This implies that there is an A1-local classifying space of spherical fibrations.
0
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.