Operators and Matrices · Volume 2, Issue 3 On the absolutely continuous spectrum of Sturm-Liouville operators with applications to radial quantum trees 02-25 Pages 417-434 DOI 10.7153/oam-02-25 Downloads Short PDF Full PDF PNG Authors Michael Schmied Robert Sims Gerald Teschl Keywords Sturm-Liouville operator absolutely continuous spectrum subordinacy quantum graphs Subject classes 34L05 81Q10 34L40 47E05