Twisted ambidexterity in equivariant homotopy theory

B Cnossen - arXiv preprint arXiv:2303.00736, 2023 - arxiv.org
We develop the concept of twisted ambidexterity in a parametrized presentably symmetric
monoidal $\infty $-category, which generalizes the notion of ambidexterity by Hopkins and …

Dualizable presentable -categories

M Ramzi - arXiv preprint arXiv:2410.21537, 2024 - arxiv.org
We prove that for any presentably symmetric monoidal $\infty $-category $\mathcal {V} $, the
$\infty $-category $\mathbf {Mod} _\mathcal {V}(\mathbf {Pr}^{\mathrm {L}})^{\mathrm {dbl}} …

Parametrised presentability over orbital categories

K Hilman - Applied Categorical Structures, 2024 - Springer
In this paper, we develop the notion of presentability in the parametrised homotopy theory
framework of Barwick et al.(Parametrized higher category theory and higher algebra: a …

[PDF][PDF] The universal cocartesian fibration

DC Cisinski, HK Nguyen - arXiv preprint arXiv:2210.08945, 2022 - arxiv.org
The universal coCartesian fibration Page 1 arXiv:2210.08945v1 [math.CT] 17 Oct 2022 The
universal coCartesian fibration Denis-Charles Cisinski and Hoang Kim Nguyen Abstract. We …

Compact sheaves on a locally compact space

O Harr - Proceedings of the American Mathematical Society, 2025 - ams.org
Let $ X $ be a hypercomplete locally compact Hausdorff space and let $\mathcal C $ be a
compactly generated stable $\infty $-category. We describe the compact objects in the $\infty …

The pro-étale topos as a category of pyknotic presheaves

S Wolf - Documenta Mathematica, 2022 - content.ems.press
In this paper we will show that for a quasicompact quasiseparated scheme X the
hypercomplete pro-étale∞-topos, as introduced by Bhatt and Scholze, is equivalent to the∞ …

Parametrised Poincar\'e duality and equivariant fixed points methods

K Hilman, D Kirstein, C Kremer - arXiv preprint arXiv:2405.17641, 2024 - arxiv.org
In this article, we introduce and develop the notion of parametrised Poincar\'{e} duality in the
formalism of parametrised higher category theory by Martini-Wolf, in part generalising …

-Topoi and descent

F Abellán, L Martini - arXiv preprint arXiv:2410.02014, 2024 - arxiv.org
We set the foundations of a theory of Grothendieck $(\infty, 2) $-topoi based on the notion of
fibrational descent, which axiomatizes both the existence of a classifying object for fibrations …

Equivariant operads, symmetric sequences, and Boardman-Vogt tensor products

N Stewart - arXiv preprint arXiv:2501.02129, 2025 - arxiv.org
We advance the foundational study of be Nardin-Shah's $\infty $-category of $ G $-operads
and their associated $\infty $-categories of algebras. In particular, we construct the …

The Adams isomorphism revisited

B Cnossen, T Lenz, S Linskens - Mathematische Zeitschrift, 2024 - Springer
We establish abstract Adams isomorphisms in an arbitrary equivariantly presentable
equivariantly semiadditive global category. This encompasses the well-known Adams …