Date of Publication:2011-01-01 Hits:
First Author:Wang,Jun
Date of Publication:2011-01-01
Journal:Journal of Combinatorial Theory. Series A
Affiliation of Author(s):数理与信息工程学院
Document Type:期刊
Volume:Vol.118
Issue:No.2
Page Number: 455-462
ISSN No.:0097-3165
Key Words:intersecting;family;cross-intersecting;family;symmetric;system;Erdős-Ko-Rado;theorem;finite;vector;space;permutation;primitivity
Abstract:Let X be a finite set and , the power set of X, satisfying three conditions: (a) is an ideal in , that is, if and , then ; (b) for with , if for any with ; (c) for every . The pair is called a symmetric system if there is a group Γ transitively acting on
Translation or Not:no