© 1988 by London Mathematical Society
On Lattices Whose Every Realization on Hilbert Space is Reflexive
Department of Mathematics, The University of Western Australia Nedlands, Western Australia 6009
Received 13 April 1987.
Let L be an abstract complete lattice. Call a subspace lattice
on a complex Hilbert space H a realization of L on H if
is lattice-isomorphic to L. The author has previously observed that if L is completely distributive, then every realization of it is reflexive. Here the converse is proved under the additional assumption that L has a realization on a finite-dimensional space. This is done by showing that every non-distributive subspace lattice on a finite-dimensional space has a non-reflexive realization on the same space.