On topological coHochschild homology and cotensor products

Fuente: arXiv
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Autore principale: Zha, Jiaxi
Natura: Preprint
Pubblicazione: 2025
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author Zha, Jiaxi
author_facet Zha, Jiaxi
contents In this work, we first study the cotensor product of comodules in the $\infty$-category $\mathrm{Mod}_R$ for a connected $\mathbb{E}_{\infty}$-ring spectrum $R$. We then apply these results to analyze higher coalgebra structures of topological coHochschild homology (coTHH) and establish its Morita-Takeuchi invariance, which are precisely dual to the corresponding properties of topological Hochschild homology.
format Preprint
id arxiv_https___arxiv_org_abs_2505_14474
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On topological coHochschild homology and cotensor products
Zha, Jiaxi
Algebraic Topology
In this work, we first study the cotensor product of comodules in the $\infty$-category $\mathrm{Mod}_R$ for a connected $\mathbb{E}_{\infty}$-ring spectrum $R$. We then apply these results to analyze higher coalgebra structures of topological coHochschild homology (coTHH) and establish its Morita-Takeuchi invariance, which are precisely dual to the corresponding properties of topological Hochschild homology.
title On topological coHochschild homology and cotensor products
topic Algebraic Topology
url https://arxiv.org/abs/2505.14474