Kalf, Hubert Daniel Bernoulli’s “immensely fertile equation”: notes on relations between a nonlinear and a linear second order equation. (German) Zbl 07809273 Elem. Math. 78, No. 4, 141-154 (2023). MSC: 34A30 34A34 34B30 PDFBibTeX XMLCite \textit{H. Kalf}, Elem. Math. 78, No. 4, 141--154 (2023; Zbl 07809273) Full Text: DOI
Minarsky, A. M.; Nazarov, A. I. On the spectra of boundary value problems generated by some one-dimensional embedding theorems. (English. Russian original) Zbl 1483.34038 J. Math. Sci., New York 236, No. 4, 413-418 (2019); translation from Zap. Nauchn. Semin. POMI 459, 58-65 (2017). MSC: 34B09 34L15 46E35 PDFBibTeX XMLCite \textit{A. M. Minarsky} and \textit{A. I. Nazarov}, J. Math. Sci., New York 236, No. 4, 413--418 (2019; Zbl 1483.34038); translation from Zap. Nauchn. Semin. POMI 459, 58--65 (2017) Full Text: DOI
Figueiredo, B. D. Bonorino Generalized spheroidal wave equation and limiting cases. (English) Zbl 1121.34090 J. Math. Phys. 48, No. 1, 013503, 43 p. (2007). MSC: 34M30 33E12 PDFBibTeX XMLCite \textit{B. D. B. Figueiredo}, J. Math. Phys. 48, No. 1, 013503, 43 p. (2007; Zbl 1121.34090) Full Text: DOI arXiv
Figueiredo, B. D. Bonorino Ince’s limits for confluent and double-confluent Heun equations. (English) Zbl 1111.34064 J. Math. Phys. 46, No. 11, 113503, 23 p. (2005). MSC: 34M30 33C15 33E30 PDFBibTeX XMLCite \textit{B. D. B. Figueiredo}, J. Math. Phys. 46, No. 11, 113503, 23 p. (2005; Zbl 1111.34064) Full Text: DOI arXiv
Campos, L. M. B. C. On the extended hypergeometric equation and functions of arbitrary degree. (English) Zbl 1034.33003 Integral Transforms Spec. Funct. 11, No. 3, 233-256 (2001). MSC: 33C05 34M35 33E30 34B30 PDFBibTeX XMLCite \textit{L. M. B. C. Campos}, Integral Transforms Spec. Funct. 11, No. 3, 233--256 (2001; Zbl 1034.33003) Full Text: DOI