On the smoothness of gap boundaries for generalized Harper operators

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/99757Results concerning set theoretic continuity properties of the spectrum of the Harper operator are extended to a large class (generalized Harper operators (GHO)) of operators in $L^{2}(\bZ^{2})$.19 pages, typos correctedMathematical PhysicsSpectral Theory81Q10; 47B37On the smoothness of gap boundaries for generalized Harper operatorstext