On an Open Problem of C. C. Chen
Kun-Lun Zhang, Donghai Li · 2009
This paper investigates the length of sublattice-lattice of finite distributive lattice. The following result is proved. For finite distributive lattices L and K, then l*(Sub(L times K)) = l*(Sub(L)) + l*(Sub(K)). Therefore, we have solved the Problem 1 of C.C.Chen.