On twisting functions in twisted cartesian products and twisted tensor products

Fuente: arXiv
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Main Author: Cai, Li
Format: Preprint
Published: 2025
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author Cai, Li
author_facet Cai, Li
contents For a given twisted cartesian products of simplicial sets, we construct the corresponding twisted tensor product in the sense of Brown, with an explicit twisting function whose formula is simple without using inductions. This is done by choosing an explicit morphism of topological monoids from Kan's loop group to Moore loop spaces, following Berger's work on simplicial prisms. We follow the choice of Brown and Berger on such a morphism, which is different from that of Gugenheim and Szczarba.
format Preprint
id arxiv_https___arxiv_org_abs_2512_14084
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On twisting functions in twisted cartesian products and twisted tensor products
Cai, Li
Algebraic Topology
Primary 55U10, Secondary 55P35, 55U15
For a given twisted cartesian products of simplicial sets, we construct the corresponding twisted tensor product in the sense of Brown, with an explicit twisting function whose formula is simple without using inductions. This is done by choosing an explicit morphism of topological monoids from Kan's loop group to Moore loop spaces, following Berger's work on simplicial prisms. We follow the choice of Brown and Berger on such a morphism, which is different from that of Gugenheim and Szczarba.
title On twisting functions in twisted cartesian products and twisted tensor products
topic Algebraic Topology
Primary 55U10, Secondary 55P35, 55U15
url https://arxiv.org/abs/2512.14084