Absolutely continuous spectrum of a Schrödinger operator on a tree

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/161090We give sufficient conditions for the presence of the absolutely continuous spectrum of a Schrödinger operator on a regular rooted tree without loops (also called regular Bethe lattice or Cayley tree).10 pages, 1 figure; a preliminary version, few more typos correctedSpectral TheoryMathematical Physics34L40Absolutely continuous spectrum of a Schrödinger operator on a treetext