The jump number and the lattice of maximal antichains
The author explains the relation between the jump number s(P) and the length of the lattice of maximal antichains l(MA(P)) of an ordered set P: \[ | P| -l(MA(P))-1\leq s(P)\leq | P| -l(MA(P)). \] If P has height one or is N-free, then s(P) equals \(| P| -l(MA(P))\).
length of the lattice of maximal antichains
scientific article; zbMATH DE number 4208124
scientific article