A New Construction of Isospectral Riemannian Nilmanifolds with Examples
Ruth Gornet

MSRI #1995-023

We present a new construction for obtaining pairs of higher-step 
isospectral Riemannian nilmanifolds and compare several resulting new examples.
In particular, we present new examples of manifolds that are isospectral
on functions, but not isospectral on one-forms.