The residually weakly primitive geometries of J_2


We announce the end of the classification of all firm and residually connected geometries satisfying the conditions (IP)_2 and (2T)_1 and on which the Hall-Janko group J_2 acts flag-transitively and residually weakly primitively.We state some facts regarding the results.The complete list of geometries is available as a supplement to this paper [9].

DOI Code: 10.1285/i15900932v21n1p77

Keywords: Janko group $J2$; Flag-transitive automorphism group; Coset geometry

Classification: 51E24

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