RT Journal Article T1 Exceptional sets and Hilbert–Schmidt composition operators A1 Gallardo Gutiérrez, Eva A. A1 González, María J. AB It is shown that an analytic map phi of the unit disk into itself inducing a Hilbert-Schmidt composition operator on the Dirichlet space has the property that the set E-phi = {e(i0)is an element ofpartial derivativeD : \phi(e(10))\ = 1 has zero logarithmic capacity. We also show that this is no longer true for compact composition operators on the Dirichlet space. Moreover, such a condition is not even satisfied by Hilbert-Schmidt composition operators on the Hardy space. PB Elsevier SN 0022-1236 YR 2003 FD 2003 LK https://hdl.handle.net/20.500.14352/58436 UL https://hdl.handle.net/20.500.14352/58436 LA eng NO Plan Nacional I+D NO Junta de Andalucía NO Universidad de Cádiz NO DGICYT NO CIRIT DS Docta Complutense RD 3 may 2024