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Ascending HNN extensions of polycyclic groups have the same cohomology as their profinite completions
Ascending HNN extensions of polycyclic groups profinite completions
2010/12/6
Assume G is a polycyclic group and : G → G an endomorphism. Let G∗ be the ascending HNN extension of G with respect to ; that is, G∗ is given by the presentation G∗ = hG, | t...