Torsion theories of simplicial groups with truncated Moore complex

zbMATH Open1498.18007arXiv2202.07067MaRDI QIDQ5045915

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Publication date: 7 November 2022

Abstract: We introduce a linearly ordered lattice $mu(Grp)$ of torsion theories in simplicial groups. The torsion theories are defined where the torsion/torsion-free subcategories are given by the simplicial groups with bounded above/below Moore complex, respectively. These torsion theories extend naturally the torsion theories in internal groupoids in groups. Connections of this lattice with the homotopy groups are established since the homotopy groups of a simplicial group can be calculated as the quotients of torsion subojects.

Full work available at URL: https://arxiv.org/abs/2202.07067

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