Crossed Corner and Reduced Simplicial Commutative Algebras

Year 2023, Issue: 45, 95 - 104, 31.12.2023

Özgün Gürmen Alansal

https://doi.org/10.53570/jnt.1391397

Abstract

In this paper, we describe the crossed corner of commutative algebras and present the relation between the category of crossed corners of commutative algebras and the category of reduced simplicial commutative algebras with Moore complex of length 2. We provide a passage from crossed corners to bisimplicial algebras. In this construction, we utilize the Artin-Mazur codiagonal functor from reduced bisimplicial algebras to simplicial algebras and the hypercrossed complex pairings in the Moore complex of a simplicial algebra. Using the coskeleton functor from the category of $k$-truncated simplicial algebras to the category simplicial algebras with Moore complex of length $k$, we see that the length of Moore complex of the reduced simplicial algebra obtained from a crossed corner is 2.

Keywords

Crossed modules, simplicial algebras, crossed corner

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