Abstract
Suppose that Z is a locally compact Hausdorff space and are -module maps between Hilbert -modules such that for every , implies . Then there exists a bounded complex-valued function φ on Z that is continuous on and satisfies .
Acknowledgments
The research of the first author was in part supported by a grant from IPM (No. 99460118).
Disclosure statement
No potential conflict of interest was reported by the author(s).