2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/141715We experimentally study equilibration across the sample edge at high fractional filling factors 4/3, 5/3 under experimental conditions, which allow us to obtain high imbalance conditions. We find a lack of the full equilibration across the edge even in the flat-band situation, where no potential barrier survives at the sample edge. We interpret this result as the manifestation of complicated edge excitation structure at high fractional filling factors 4/3, 5/3. Also, a mobility gap in the $ν_c=1$ incompressible strip is determined in normal and tilted magnetic fields.Mesoscale and Nanoscale PhysicsStrongly Correlated Electronstext