Diagram geometry;
groups and geometries;
Hall-Janko groupJ2.;
D O I:
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摘要:
We prove the existence of a rank three geometry admitting the Hall–Janko group J2 as flag-transitive automorphism group and Aut(J2) as full automorphism group. This geometry belongs to the diagram (c·L*) and its nontrivial residues are complete graphs of size 10 and dual Hermitian unitals of order 3.
机构:
Univ Limpopo Turfloop, Sch Math & Comp Sci, P Bag X1106, ZA-0727 Sovenga, South AfricaUniv Limpopo Turfloop, Sch Math & Comp Sci, P Bag X1106, ZA-0727 Sovenga, South Africa