Operators and Matrices · Volume 16, Issue 2 Unit vectors in full Hilbert C(Z)-modules 16-28 Pages 349-356 DOI 10.7153/oam-2022-16-28 Downloads Short PDF Full PDF PNG Authors Z. Hassanpour-Yakhdani Kourosh Nourouzi Keywords unit vector Hilbert C∗-module tangent vector field extreme point Exposed point Subject classes 46L08 46B20