Smooth Structures on the product of 3-connected 8-manifolds with spheres

Fuente: arXiv
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Main Author: Sarkar, Ankur
Format: Preprint
Published: 2025
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author Sarkar, Ankur
author_facet Sarkar, Ankur
contents Let $M$ be a closed, 3-connected, 8-dimensional smooth manifold. In this paper, we compute the concordance inertia group of the product manifold $M\times\mathbb{S}^k$ for $1\leq k\leq 14$ and classify all smooth manifolds homeomorphic to $M\times\mathbb{S}^k,$ up to concordance for $1\leq k\leq 10.$ Moreover, we provide a diffeomorphism classification of smooth manifolds homeomorphic to $M\times\mathbb{S}^1,$ where $H^4(M;\mathbb{Z})=\mathbb{Z}.$
format Preprint
id arxiv_https___arxiv_org_abs_2502_20736
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Smooth Structures on the product of 3-connected 8-manifolds with spheres
Sarkar, Ankur
Geometric Topology
Algebraic Topology
57R55, 57R67, 55P47
Let $M$ be a closed, 3-connected, 8-dimensional smooth manifold. In this paper, we compute the concordance inertia group of the product manifold $M\times\mathbb{S}^k$ for $1\leq k\leq 14$ and classify all smooth manifolds homeomorphic to $M\times\mathbb{S}^k,$ up to concordance for $1\leq k\leq 10.$ Moreover, we provide a diffeomorphism classification of smooth manifolds homeomorphic to $M\times\mathbb{S}^1,$ where $H^4(M;\mathbb{Z})=\mathbb{Z}.$
title Smooth Structures on the product of 3-connected 8-manifolds with spheres
topic Geometric Topology
Algebraic Topology
57R55, 57R67, 55P47
url https://arxiv.org/abs/2502.20736