Published online by Cambridge University Press: 20 November 2018
In this paper, we consider the extent to which a local Noether lattice (ℒ, M) is characterized by the sub-multiplicative lattice, denoted δℒ, of M-primary elements. (Here we use the notation (ℒ, M) to indicate that M is the maximal element of ℒ.) In particular, we call ℒM-complete if, given any decreasing sequence {Ai } of elements and any n ≧ 1, it follows that A i ≦ A V Mn for large i, where A = ΛAi And we show that, given two Mi -complete local Noether lattices (ℒ 1, M 1) and (ℒ 2, M 2), with δℒ 1 ≅ δℒ 2, it follows that ℒ 1 ≅ ℒ 2. Further, we show that any local Noether lattice (ℒ, M) is a sublattice of a local Noether lattice (ℒ *, M) which is M-complete and such that δℒ = δℒ *.