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arXiv · 1502.05727

On the Christensen-Wang bounds for the ghost number of a p-group algebra

Fatma Altunbulak Aksu·David J. Green
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Abstract

Christensen and Wang give conjectural upper and lower bounds for the ghost number of the group algebra of a p-group. We apply results of Koshitani and Motose on the nilpotency index of the Jacobson radical to prove the upper bound and most cases of the lower bound.

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Fatma Altunbulak Aksu, David J. Green. 2015-02-19. On the Christensen-Wang bounds for the ghost number of a p-group algebra. https://doi.org/10.1515/jgth-2015-0050

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