Reduced Fusion Systems with an Abelian Subgroup of Index p, II

David A. Craven, University of Birmingham

15th June, 2021

I distinguish four types of corrections, in order of increasing seriousness:

  • (Extra) Additional information that was not available at the time of writing, or that I did not know about.

  • (Improve) Typographical issues, where what is written is still correct, but there is a nicer way of phrasing it, or I could choose a better symbol.

  • (Typo) Typographical errors, where I have spelled a word wrongly, used the wrong symbol, and so on.

  • (Error) Errors in proofs or statements.

When I give each correction, I will label it with one of these monikers.

  • (i) (Error) p. 219. Table 2.2. There is a mistake in the penultimate line of this table, for \(E_8(q)\) for \(p=5\). \(\mathbf {E}_0\) is given as \(\mathcal {H}_0\cup \mathcal {B}_*\), but it should be \(\mathcal {B}_0\cup \mathcal {B}_*\). This case occurs in the sequel paper by Oliver–Ruiz, Table 4.2, where the correct set of essentials is given.