Group completion in the K-theory and Grothendieck-Witt theory of proto-exact categories

Abstract

We study the algebraic K-theory and Grothendieck-Witt theory of proto-exact categories, with a particular focus on classes of examples of F1-linear nature. Our main results are analogues of theorems of Quillen and Schlichting, relating the K-theory or Grothendieck-Witt theories of proto-exact categories defined using the (hermitian) Q-construction and group completion.

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