Publikace na Matematicko-fyzikální fakulta |
2011
Abstrakt
The linear extension diameter of a finite poset P is the diameter of the graph on all linear extensions of P as vertices, two of them being adjacent whenever they differ in exactly one (adjacent) transposition. Recently, Felsner and Massow determined the linear extension diameter of the Boolean lattice B, and they posed a question of determining the linear extension diameter of a subposet of B induced by two levels.
We solve the case of the 1st and kth level.