On projection from to the Hardy spaces
arXiv:2502.21237
Abstract
This paper describes the known results on the projection from the most general holomorphic spaces , which depend on a functional parameter and are over the unit disc, upper half-plane and the finite complex plane, to the classical Hardy spaces The paper can be considered as a survey in the mentioned topic. A new result on the projection of the half-plane to the half-plane Hardy space is obtained.