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On the Prime Graph Question for Integral Group Rings of 4-primary groups I by Bächle, Andreas; Margolis, Leo is a scholarly article available to read on EtoBox.

What is On the Prime Graph Question for Integral Group Rings of 4-primary groups I about?

We study the Prime Graph Question for integral group rings. This question can be reduced to almost simple groups by a result of Kimmerle and Konovalov. We prove that the Prime Graph Question has an affirmative answer for all almost simple groups having a socle isomorphic to $\operatorname{PSL}(2, p^f)$ for $f \leq 2$, establishing the Prime Graph Question for the first time for all automorphic extensions of series of simple groups. Using this, we determine exactly how far the so-called HeLP-method can take us for (almost simple) groups having an order divisible by at most $4$ different primes.

Author

Bächle, Andreas; Margolis, Leo

Published

2016

Language

EN