exact cover

名词 n.

英文释义

名词 n.
  1. Given a collection S of subsets of a set X, a subcollection S^* of S such that each element of X is contained in exactly one subset in S^*.
    — A finite set #92;#123;S(#92;alpha#95;i,#92;beta#95;i)#92;vert 1#92;lei#92;lem#92;#125; is called an (eventual) exact cover if every (sufficiently large) positive integer occurs in exactly one S(#92;alpha#95;i,#92;beta#95;i). If #92;#123;S(#92;alpha#95;i,#92;beta#95;i)#92;#125;#95;#123;i#61;1#125;ᵐ is an eventual exact cover, then #92;textstyle#92;sum#95;#123;i#61;1#125;ᵐ#123;#92;alpha#95;i#123;-1

词形变化

exact covers plural
0 次浏览 数据来源: Wiktionary