作者: İlke Çanakçı , David Pauksztello , Sibylle Schroll
DOI: 10.1016/J.JALGEBRA.2020.08.005
关键词:
摘要: Abstract In this note we correct two oversights in Canakci et al. (2019) [6] which only occur when a band complex is involved. As consequence see that the mapping cone of morphism between complexes can decompose into arbitrarily many indecomposable direct summands.