On a certain ideal of Külshammer in the centre of a group algebra
Murray, John (2001) On a certain ideal of Külshammer in the centre of a group algebra. Archiv der Mathematik , 77 (5). pp. 373-377. ISSN 0003-889X
Let G be a finite group and let F be a splitting field of characteristic p > 0. We show that I2 = E0, where I is a certain ideal of the centre Z of FG, and E0 is the span of the block idempotents of defect zero.
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