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math.GR2014
A formula for the second cohomology of two-step nilpotent groups
Karel Dekimpe, Manfred Hartl, Sarah Wauters
In [5], the notion of polynomial cocycles is used to give an expression for the second cohomology of T-groups with coefficients in a torsion-free nilpotent module. We make this exp…
math.GR2011★ 2 cited
A seven-term exact sequence for the cohomology of a group extension
Karel Dekimpe, Manfred Hartl, Sarah Wauters
In this paper, we construct a seven-term exact sequence involving the cohomology groups of a group extension. Although the existence of such a sequence can be derived using spectra…