A Sufficient Condition for Hyperinvariance
W. E. Longstaff · Proceedings of the American Mathematical Society · 1976
A linear transformation on a finite-dimensional complex linear space has the property that all of its invariant subspaces are hyperinvariant if and only if its lattice of invariant subspaces is distributive [1]. It is shown that an operator on a complex Hilbert space has this property if its lattice of invariant subspaces satisfies a certain distributivity condition.