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Suzuki and Ree groups

In simple Suzuki groups  2 B 2 ( q ), q > 2 and Ree groups 2 F 4 ( q ), q > 2 and 2 G 2 ( q ), q > 3  the class of an element x    is kthulhu if and only if G = 2 B 2 ( q ) and | x | =2 or | x | divides q 2 +1; G = 2 F 4 ( q ) and | x | = 13 and divides q 4 − q 2 +1; G = 2 G 2 ( q ) and | x | =3 or | x | = 7 and divides q 2 − q +1 .  However,  dim B ( V ) = ∞ for every complex Yetter-Drinfeld module V of G a simple Suzuki or Ree group.  Thus, the only finite-dimensional complex pointed Hopf algebras whose group of grouplikes is G are  their group algebras  C G .

Preface

The purpose of these pages is make an account -and keep it updated- of the kthulhu racks, whose associated Nichols algebras still need to be computed. Presently, we have substantial information on conjugacy classes of Alternating and symmetric groups. Sporadic groups . Finite groups of Lie type . March 2018