Professor Bilender Allahverdiyev from Khazar University's Mathematics Department has published an article titled "Spectral expansion for singular beta Sturm-Liouville problems" in the "Ural Mathematical Journal" (2024, Volume 10, No. 2). It is worth noting that the "Ural Mathematical Journal" is indexed in both the "Web of Science" and "Scopus" databases.

In this study, beta Sturm-Liouville problems are discussed. For such equations, the spectral function is established in the singular case. A spectral expansion is given with the help of this function.

Link to the article: https://umjuran.ru/index.php/umj/issue/view/21/showToc

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