Hilbert C∗C^*-bimodules over commutative C∗C^*-algebras and an isomorphism condition for quantum Heisenberg manifolds

A study of Hilbert $C^*$-bimodules over commutative $C^*$-algebras is carried out and used to establish a sufficient condition for two quantum Heisenberg manifolds to be isomorphic.Comment: LaTex format, 19 pages, no figure