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20122023
most citedBounds on the non-real spectrum of differential operators with indefinite weights

2 citations · 2 across the 5 of their papers we have counts for

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math.SP2023

Perturbation and spectral theory for singular indefinite Sturm-Liouville operators

Jussi Behrndt, Philipp Schmitz, Gerald Teschl +1

We study singular Sturm-Liouville operators of the form \[ \frac{1}{r_j}\left(-\frac{\mathrm d}{\mathrm dx}p_j\frac{\mathrm d}{\mathrm dx}+q_j\right),\qquad j=0,1, \] in $L^2((a,b)…