Abstract
In [1] the authors constructed a seven term exact sequence in the cohomology of a group extension 1→N→G→Q→1 with coefficients in a G-module M. However, they were unable to establish the precise link between the maps in that sequence and the corresponding maps arising from the spectral sequence associated to the group extension and the G-module M. In this paper, we show that there is a close connection between [1] and the two earlier papers [6] and [7]. In particular, we show that the results in [6] and [7] entail that the maps of [1] other than the obvious inflation and restriction maps do correspond to the corresponding ones arising from the spectral sequence.
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