@article{Dimou_Kabbaj_2017, title={A generalization of variant of Wilson stype Hilbert space valued functional equations.}, volume={36}, url={https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/2392}, abstractNote={<p>In the present paper we characterize, in terms of characters, multiplicative functions, the continuous solutions of some functional equations for mappings defined on a monoid and taking their values in a complex Hilbert space with the Hadamard product. In addition, we investigate a superstability result for these equations.</p>}, number={3}, journal={Proyecciones (Antofagasta, On line)}, author={Dimou, Hajira and Kabbaj, Samir}, year={2017}, month={Oct.}, pages={485-498} }