# Continuity of the Polar Decomposition for Unbounded Operators on Hilbert C *-modules

@inproceedings{Sharifi2010ContinuityOT, title={Continuity of the Polar Decomposition for Unbounded Operators on Hilbert C *-modules}, author={Kamran Sharifi}, year={2010} }

- Published 2010

For unbounded operators t, s between Hilbert C*-modules which admit the polar decompositions V|t|, W|s|, respectively, we obtain an explicit upper bound estimate for the gap between t and s in terms of the norm of the bounded operators V − W , C|t| − C|s| and C|t∗| − C|s∗|, where C|t| and C|s| are the Cayley transforms of |t| and |s|. The result are used to drive a criterion for continuity of the polar decomposition for unbounded operators between Hilbert C*-modules.