Nv. Hoa, ON THE STRUCTURE OF CLOSED CLASSES OF K-V ALUED LOGIC, SELF-DUAL RELATIVE TO TRANSITIVE GROUPS, Doklady Akademii nauk BSSR, 38(6), 1994, pp. 17-20
For k greater than or equal to 3, m greater than or equal to[2/k]+1 we
have proved that the lattice of all closed classes, which are preserv
ed by any m-transitive group of inner automorphism of k-valued logic i
s finite and consists of finitely generated classes.