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Framed motivic Gamma-spaces

Grigory Garkusha Orcid Logo, Ivan Panin, Paul Arne Ostvaer

Izvestiya: Mathematics, Volume: 87, Issue: 1, Pages: 1 - 28

Swansea University Author: Grigory Garkusha Orcid Logo

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DOI (Published version): 10.4213/im9246e

Abstract

We combine several mini miracles to achieve an elementary understanding of infinite loop spaces and very effective spectra in the algebro-geometric setting of motivic homotopy theory. Our approach combines Γ-spaces and Voevodsky’s framed correspondences into the concept of framed motivic Γ-spaces; t...

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Published in: Izvestiya: Mathematics
ISSN: 1064-5632 1468-4810
Published: Steklov Mathematical Institute 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa60277
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Abstract: We combine several mini miracles to achieve an elementary understanding of infinite loop spaces and very effective spectra in the algebro-geometric setting of motivic homotopy theory. Our approach combines Γ-spaces and Voevodsky’s framed correspondences into the concept of framed motivic Γ-spaces; these are continuous or enriched functors of two variables that take values in framed motivic spaces. We craft proofs of our main results by imposing further axioms on framed motivic Γ-spaces such as a Segal condition for simplicial Nisnevich sheaves, cancellation, A1- and σ-invariance, Nisnevich excision, Suslin contractibility, and grouplikeness. This adds to the discussion in the literature on coexisting points of view on the A1-homotopy theory of algebraic varieties.
Keywords: Framed correspondences, Γ-spaces, motivic spaces, framed motivic Γ-spaces, connective and very effective motivic spectra, infinite motivic loop spaces.
College: Faculty of Science and Engineering
Issue: 1
Start Page: 1
End Page: 28