Linear Maps Preserving Quasi-Unitary Operators


Let H be a infinite separable complex Hilbert space and B(H) the algebra of all bounded linear operators on H. We give the concrete forms of surjective linear maps φ : B(H) → B(H) preserving quasi-unitary operators and using this result for giving a form of φ when it preserves operator pairs whose products or triple Jordan products are nonzero quasi-unitary… (More)


Cite this paper

@inproceedings{Chahbi2014LinearMP, title={Linear Maps Preserving Quasi-Unitary Operators}, author={Abdellatif Chahbi and Ahmed Charifi and Samir Kabbaj}, year={2014} }