在作者“ s Ph。D 论文,招收对 J_1 同形的 aquasiprimitive 自守组的一张 non-quasiprimitive 图被构造,在 J_1 是顺序 175560 的 Janko 简单的组的地方。这是为 J_1 的唯一一个吗?在这篇论文所有原语(J_1, 2 ) 及物的图Γ被给的弧和那 Aut Γ≈ J _1 被证明。
In the author's Ph. D thesis, a non-quasiprimitive graph admitting a quasiprimitive automorphism group isomorphic to J1 was constructed ,where J1 is Janko simple group of order 175560. Is this the only one for J1? In this paper all primitive (J1,2)-arc transitive graphs Г are given and that AutГ≌J1 is proved.