Correction to: On Borg’s method for non-selfadjoint Sturm–Liouville operators

1 Correction to: Analysis and Mathematical Physics https://doi.org/10.1007/s13324-019-00307-9

The original version of the article unfortunately contained few misprints under Preliminaries section. The corrected text is given below.

$${\mathcal{D}}_j = \left[\begin{array}{*{20}l} {d_{n_{1j}j}} & {} & {} \\ {} & {d_{n_{2j}j}} & {} \\ {} & {} & {\ddots} \\ \end{array} \right]$$

with the square cells d_nj determined in (13), where {n_kj}_k≥1 is the increasing sequence of all elements of the set ${\mathcal{S}}_{j}$. The other elements of ${\mathcal{D}}_{j}$ (i.e. not included in d_nj’s) are equal to zero. Note that, according to the asymptotics (2), $d_{n_{\nu j}j}=[1]$ for sufficiently large ν.

The Original Article was corrected.