Best constants in reverse Riesz-type inequalities for analytic and co-analytic projections

Petar Melentijević

Let $P_{+}$ be the Riesz's projection operator and let $P_{-}=I-P_{+}$. We consider the inequalities of the following form $$ \|f\|_{L^p(\mathbb{T})}\leq B_{p,s}\|( |P_ + f | ^s + |P_…