Propagation diagram of a 1 M_⊙ star in the RGB, just after the RGB bump. The Lamb and Brunt-Väisälä frequencies are shown as the solid blue and orange lines respectively. Their reduced counterparts are shown as dashed blue and orange lines respectively. A mixed mode with a frequency of ν_max is shown as a dashed black line in the g-like part, as a solid black line in the p-like part, and as a dotted black line in the evanescent zone. The boundaries of the evanescent zone, r₁ and r₂ are shown as red and blue dots respectively. The hydrogen-burning shell is shown as the cyan shaded region.