Fig. 5From: Path homologies of motifs and temporal network representationsThese two digraphs have torsion subgroups of \({\mathbb {Z}}/2{\mathbb {Z}}\) (left) and \({\mathbb {Z}}/3{\mathbb {Z}}\) (right), i.e., their homology over \({\mathbb {Z}}\) contains these finite groups as a direct summand as described in §2Back to article page