Charles Frederick Renn

There are 1 included publications by Charles Frederick Renn :

Title	Date	Views	Brief Description
On union-closed families	2007	2263	"A union-closed family is a non-empty finite collection of non-empty sets that is closed under unions. Peter Frankl conjectured in 1979 that given a union-closed family, then there exists an element that occurs in at least half of the member sets. De...