An inverse problem for Sturm-Liouville equations with a fixed node

In this paper, we study a kind of inverse nodal problems for the classical Sturm-Liouville problems. To be precise, we prove the sharp lower bounds for the L1-norms of potentials when the unique node of the second eigenfunction is given. The proof is based on a strong continuity of the nodes in the...

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Vydané v:	Journal of Differential Equations Ročník 454; s. 113966
Hlavní autori:	Chu, Jifeng, Meng, Gang, Xie, Nana
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Elsevier Inc 15.02.2026
Predmet:	Measure differential equations Nodes Optimization problem Sturm-Liouville problem Measure differential equations Sturm-Liouville problem Nodes Optimization problem primary
ISSN:	0022-0396
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