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Brief Communications

Sturm Separation Theorems for a Fourth-Order Equation on a Graph

R. Ch. Kulaev^a, A. A. Urtaeva<sup>b

a</sup> Southern Mathematical Institute of the Vladikavkaz Scientific Center of the Russian Academy of Sciences
^b North Ossetian State University after Kosta Levanovich Khetagurov, Vladikavkaz

Keywords: Sturm comparison theorems, Sturm–Liouville problem, differential equation on graph, oscillation theorem.

Received: 25.10.2021
Revised: 20.01.2022

DOI: 10.4213/mzm13332

 English version: Mathematical Notes, 2022, 111:6, 977–981

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