Bauer, Wolfram; Furutani, Kenro; Iwasaki, Chisato; Laaroussi, Abdellah
(Berlin ; Heidelberg : Springer, 2021)
We determine the spectrum of the sub-Laplacian on pseudo H-type nilmanifolds and present pairs of isospectral but non-homeomorphic nilmanifolds with respect to the sub-Laplacian. We observe that these pairs are also ...