HACETTEPE JOURNAL OF MATHEMATICS AND STATISTICS, vol.49, no.6, pp.1865-1884, 2020 (SCI-Expanded)
In this work, we explain the close relationship between an ideal map structure S End(R)(R) on a homomorphism of commutative k-algebras R -> S and an ideal simplicial algebra structure on the associated bar construction Bar(S,R). We also explain this structure for crossed squares of algebras.