Allahverdiev, Bilender P.; Tuna, Hüseyin Qualitative spectral analysis of singular \(q\)-Sturm-Liouville operators. (English) Zbl 1496.34126 Bull. Malays. Math. Sci. Soc. (2) 43, No. 2, 1391-1402 (2020). MSC: 34L40 34B24 PDFBibTeX XMLCite \textit{B. P. Allahverdiev} and \textit{H. Tuna}, Bull. Malays. Math. Sci. Soc. (2) 43, No. 2, 1391--1402 (2020; Zbl 1496.34126) Full Text: DOI
Allahverdiev, Bilender P.; Tuna, Huseyin Indices defect theory of singular Hahn-Sturm-Liouville operators. (English) Zbl 1462.39016 J. Appl. Anal. Comput. 9, No. 5, 1719-1730 (2019). MSC: 39A70 39A12 47B25 39A13 34B20 PDFBibTeX XMLCite \textit{B. P. Allahverdiev} and \textit{H. Tuna}, J. Appl. Anal. Comput. 9, No. 5, 1719--1730 (2019; Zbl 1462.39016) Full Text: DOI
Allahverdiev, Bilender P.; Tuna, Hüseyin Limit-point criteria for \(q\)-Sturm-Liouville equations. (English) Zbl 1427.39003 Quaest. Math. 42, No. 10, 1291-1299 (2019). MSC: 39A13 33D05 33D15 47A99 47B25 34B20 PDFBibTeX XMLCite \textit{B. P. Allahverdiev} and \textit{H. Tuna}, Quaest. Math. 42, No. 10, 1291--1299 (2019; Zbl 1427.39003) Full Text: DOI