DECIDING FRATTINI IS NP-COMPLETE

被引:4
|
作者
RYTER, CH [1 ]
SCHMID, J [1 ]
机构
[1] UNIV BERN,DEPT MATH,CH-3012 BERN,SWITZERLAND
关键词
PARTIALLY ORDERED SET; FRATTINI SUBLATTICE; NP-COMPLETE;
D O I
10.1007/BF02115815
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We show that it is a NP-complete problem to decide whether a finite poset arises as the (Birkhoff) dual of the Frattini sublattice of some finite distributive lattice.
引用
收藏
页码:257 / 279
页数:23
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