Displaying similar documents to “Freeness conditions for 2-crossed modules and complexes.”

Simplicial T-complexes and crossed complexes: a non-abelian version of a theorem of Dold and Kan

N. Ashley

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CONTENTSPreface (by Ronald Brown)..................................................................5Introduction..........................................................................................7Preliminaries........................................................................................91. T-complexes and crossed complexes.............................................101.1. A groupoid structure for a T-complex..........................................121.2. The isomorphism...

Coproduct of Crossed A-Modules of R-Algebroids

Osman Avcıoglu, Ibrahim Ilker Akça (2017)

Topological Algebra and its Applications

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In this study we construct, in the category XAlg(R) / A of crossed A-modules of R-algebroids, the coproduct of given two crossed A-modules M = (μ : M → A) and N = (ɳ : N → A) of R-algebroids in two different ways: Firstly we construct the coproduct M ᴼ* N by using the free product M * N of pre-R-algebroids M and N, and then we construct the coproduct M ᴼ⋉ N by using the semidirect product M ⋉ N of M and N via μ. Finally we construct an isomorphism betweenM ᴼ* N and M ᴼ⋉ N.