File:Cohomologytreeorder8groups.png

This file was created using Graphviz with the following code:

digraph G{       rankdir = "LR"; Root[label = "H^2(Z_2;Z_2,Z_2), total weight 1"]; V4onZ2[label = "H^2(V_4;Z_2), total weight 1/2"]; Z4onZ2[label = "H^2(Z_4;Z_2), total weight 1/2"]; E8[label="E_8, GAP ID (8,5), weight 1/16"]; Q8[label="Q_8, GAP ID (8,4), weight 1/16"]; D8[label="D_8 (3 times), GAP ID (8,3), total weight 3/16"]; Z4timesZ2viaV4onZ2[label="Z_4 X Z_2 (3 times), GAP ID (8,2) total weight 3/16"]; Z4timesZ2viaZ4onZ2[label="Z_4 X Z_2, GAP ID (8,2), weight 1/4"]; Z8[label="Z_8, GAP ID (8,1), weight 1/4"]; Root -> V4onZ2; Root -> Z4onZ2; V4onZ2 -> E8; V4onZ2 -> Q8; V4onZ2 -> D8; V4onZ2 -> Z4timesZ2viaV4onZ2; Z4onZ2 -> Z4timesZ2viaZ4onZ2; Z4onZ2 -> Z8; }