A Pushing-Pulling Method: New Proofs of Intersection Theorems

A Pushing-Pulling Method: New Proofs of Intersection Theorems
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DOI:
10.1007/s004930050042
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发表时间:
1999
期刊:
影响因子:
1.1
通讯作者:
R. Ahlswede;L. Khachatrian
R. Ahlswede;L. Khachatrian
中科院分区:
数学2区
文献类型:
--
作者:
R. Ahlswede;L. Khachatrian

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N表示正整数的集合。对于i,j∈ N,i< j,集合{i,i+ 1,.,[i,j],我们将[1,n]写成[n]。对于k,n∈ N,k≤ n,我们设2 [n]=
N denotes the set of positive integers. For i, j∈ N, i< j, the set {i, i+ 1,..., j} is abbreviated as [i, j] and we write [n] for [1, n]. For k, n∈ N, k≤ n, we set2 [n]=