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math.GR2012
Odd Characterizations of Almost Simple Groups (PhD Thesis 2009)
Sarah Astill
In this PhD thesis we discuss methods of recognizing finite groups by the structure of normalizers of certain 3-subgroups. We explain a method for characterizing groups using chara…
math.GR2012
A 3-Local Characterization of the Harada--Norton Sporadic Simple Group
Sarah Astill
We provide 3-local characterizations of the Harada--Norton sporadic simple group and its automorphism group. Both groups are examples of groups of parabolic characteristic three an…