Descent and cyclotomic redshift for chromatically localized algebraic K-theory

S Ben-Moshe, S Carmeli, TM Schlank… - arXiv preprint arXiv …, 2023 - arxiv.org
We prove that $ T (n+ 1) $-localized algebraic $ K $-theory satisfies descent for $\pi $-finite $
p $-group actions on stable $\infty $-categories of chromatic height up to $ n $, extending a …

Brauer groups and étale cohomology in derived algebraic geometry

B Antieau, D Gepner - Geometry & Topology, 2014 - msp.org
In this paper, we study Azumaya algebras and Brauer groups in derived algebraic geometry.
We establish various fundamental facts about Brauer groups in this setting, and we provide …

Parametrized spectra, multiplicative Thom spectra and the twisted Umkehr map

M Ando, A Blumberg, D Gepner - Geometry & Topology, 2018 - msp.org
We introduce a general theory of parametrized objects in the setting of ß–categories.
Although parametrised spaces and spectra are the most familiar examples, we establish our …

Norms in motivic homotopy theory

T Bachmann, M Hoyois - arXiv preprint arXiv:1711.03061, 2017 - arxiv.org
If $ f: S'\to S $ is a finite locally free morphism of schemes, we construct a symmetric
monoidal" norm" functor $ f_\otimes:\mathcal H_*(S')\to\mathcal H_*(S) $, where $\mathcal …

The Relative Brauer Group of K(1)-Local Spectra

I Mor - International Mathematics Research Notices, 2024 - academic.oup.com
Using profinite Galois descent, we compute the Brauer group of the-local category relative to
Morava E-theory. At odd primes this group is generated by a cyclic algebra formed using any …

Separability in homotopical algebra

M Ramzi - arXiv preprint arXiv:2305.17236, 2023 - arxiv.org
We study the notion of\emph {separable algebras} in the context of symmetric monoidal
stable $\infty $-categories. In the first part of this paper, we compare this context to that of …

Picard and Brauer groups of -local spectra via profinite Galois descent

I Mor - arXiv preprint arXiv:2306.05393, 2023 - arxiv.org
Using the pro\'etale site, we construct models for the continuous actions of the Morava
stabiliser group on Morava E-theory, its $\infty $-category of $ K (n) $-local modules, and its …

Picard groups of higher real

D Heard, A Mathew, V Stojanoska - Compositio Mathematica, 2017 - cambridge.org
Picard groups of higher real K-theory spectra at height p − 1 Page 1 Picard groups of higher
real K-theory spectra at height p − 1 Drew Heard, Akhil Mathew and Vesna Stojanoska …

Invertible K (2)–local E–modules in C4–spectra

A Beaudry, I Bobkova, M Hill, V Stojanoska - Algebraic & Geometric …, 2020 - msp.org
We compute the Picard group of the category of K (2)–local module spectra over the ring
spectrum E h C 4, where E is a height 2 Morava E–theory and C 4 is a subgroup of the …

The inverse limit topology and profinite descent on Picard groups in -local homotopy theory

G Li, N Zhang - arXiv preprint arXiv:2309.05039, 2023 - arxiv.org
In this paper, we study profinite descent theory for Picard groups in $ K (n) $-local homotopy
theory through their inverse limit topology. Building upon Burklund's result on the …