摘要
Let Ω be a finite set, and let G be a permutation group on Ω. A subset H of G is called intersecting if for any a, 7r H, they agree on at least one point. We show that a maximal intersecting subset of an irreducible imprimitive reflection group G(m,p,n) is a coset of the stabilizer of a point in {1,... ,n} provided n is sufficiently large.
Let Ω be a finite set, and let G be a permutation group on Ω. A subset H of G is called intersecting if for any a, 7r H, they agree on at least one point. We show that a maximal intersecting subset of an irreducible imprimitive reflection group G(m,p,n) is a coset of the stabilizer of a point in {1,... ,n} provided n is sufficiently large.
基金
Acknowledgements The author would like to express her deep gratitude to Professor Jun Wang for guiding her into this area and thank the referees for their invaluable suggestions. This work was supported in part by the National Natural Science Foundation of China (Grant Nos. 11001176, 10971138).