RT Journal Article T1 Rellich identities for the Hilbert transform A1 Carro Rossell, María Jesús A1 Naibo, Virginia A1 Soria Carro, María AB We prove Hilbert transform identities involving conformal maps via the use of Rellich identity and the solution of the Neumann problem in a graph Lipschitz domain in the plane. We obtain as consequences new weighted estimates for the Hilbert transform, including a sharp bound for its norm as a bounded operator in weighted in terms of a weight constant associated to the Helson-Szegö theorem. PB Elsevier SN 0022-1236 YR 2024 FD 2024 LK https://hdl.handle.net/20.500.14352/130243 UL https://hdl.handle.net/20.500.14352/130243 LA eng DS Docta Complutense RD 19 mar 2026