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20242026
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math.AT2026

On the derived Tate curve and global smooth Tate -theory

Jack Morgan Davies, Sil Linskens

The interplay between equivariant stable homotopy theory and spectral algebraic geometry is used to construct a derived Tate curve over , a lift of the classical…

math.AT2026

An algebraic model for rational ultracommutative rings

William Balderrama, Jack Morgan Davies, Sil Linskens

Given a global equivariant ultracommutative ring spectrum and inclusion of finite groups, one may apply geometric fixed points to the norm $N_H^G E_H \to E…

math.AT2026

Global 2-rings and genuine refinements

David Gepner, Sil Linskens, Luca Pol

We introduce the notion of a naive global 2-ring: a functor from the opposite of the -category of global spaces to presentably symmetric monoidal stable -categories…

math.AT2026

Ambidextrous global spectra and tempered cohomology

William Balderrama, Jack Morgan Davies, Sil Linskens

We introduce generalizations of global equivariant spectra which encode globally equivariant cohomology theories equipped with additional transfers, such as the deflation maps pres…

math.AT2026

Norms in equivariant homotopy theory

Tobias Lenz, Sil Linskens, Phil Pützstück

We show that the -category of normed algebras in genuine -spectra, as introduced by Bachmann-Hoyois, is modelled by strictly commutative algebras in -symmetric spectr…

math.AT2025

Affineness and reconstruction in complex-periodic geometry

William Balderrama, Jack Morgan Davies, Sil Linskens

Working in a generic derived algebro-geometric context, we lay the foundations for the general study of affineness and local descendability. When applied to rin…