Ibrogimov, O. O.; Siegl, P.; Tretter, C. Analysis of the essential spectrum of singular matrix differential operators. (English) Zbl 1328.47008 J. Differ. Equations 260, No. 4, 3881-3926 (2016). MSC: 47A10 34L05 47A55 76E99 PDFBibTeX XMLCite \textit{O. O. Ibrogimov} et al., J. Differ. Equations 260, No. 4, 3881--3926 (2016; Zbl 1328.47008) Full Text: DOI arXiv
Ibrogimov, Orif O.; Langer, Heinz; Langer, Matthias; Tretter, Christiane Essential spectrum of systems of singular differential equations. (English) Zbl 1324.47029 Acta Sci. Math. 79, No. 3-4, 423-465 (2013). Reviewer: Catalin Badea (Lille) MSC: 47A53 55R10 47A10 34L05 47A55 76E99 PDFBibTeX XMLCite \textit{O. O. Ibrogimov} et al., Acta Sci. Math. 79, No. 3--4, 423--465 (2013; Zbl 1324.47029) Full Text: arXiv
Pivovarchik, Vyacheslav; Rozhenko, Natalia; Tretter, Christiane Dirichlet-Neumann inverse spectral problem for a star graph of Stieltjes strings. (English) Zbl 1286.34025 Linear Algebra Appl. 439, No. 8, 2263-2292 (2013). MSC: 34A55 34B45 34L05 39A70 70F17 70J30 PDFBibTeX XMLCite \textit{V. Pivovarchik} et al., Linear Algebra Appl. 439, No. 8, 2263--2292 (2013; Zbl 1286.34025) Full Text: DOI arXiv
Marletta, Marco; Tretter, Christiane Essential spectra of coupled systems of differential equations and applications in hydrodynamics. (English) Zbl 1129.47061 J. Differ. Equations 243, No. 1, 36-69 (2007). MSC: 47N20 47E05 47A10 34L05 47A55 76E99 PDFBibTeX XMLCite \textit{M. Marletta} and \textit{C. Tretter}, J. Differ. Equations 243, No. 1, 36--69 (2007; Zbl 1129.47061) Full Text: DOI
Schmid, Harald; Tretter, Christiane Singular Dirac systems and Sturm-Liouville problems nonlinear in the spectral parameter. (English) Zbl 1012.34082 J. Differ. Equations 181, No. 2, 511-542 (2002). Reviewer: Vyacheslav Pivovarchik (Odessa) MSC: 34L40 34L05 34B07 34B16 34B24 34B40 PDFBibTeX XMLCite \textit{H. Schmid} and \textit{C. Tretter}, J. Differ. Equations 181, No. 2, 511--542 (2002; Zbl 1012.34082) Full Text: DOI
Mennicken, R.; Sakhnovich, A. L.; Tretter, C. Direct and inverse spectral problem for a system of differential equations depending rationally on the spectral parameter. (English) Zbl 1020.34024 Duke Math. J. 109, No. 3, 413-449 (2001). Reviewer: Ingrid Beltita (Bucureşti) MSC: 34B20 34B07 34L05 47E05 34A55 PDFBibTeX XMLCite \textit{R. Mennicken} et al., Duke Math. J. 109, No. 3, 413--449 (2001; Zbl 1020.34024) Full Text: DOI
Tretter, Christiane A linearization for a class of \(\lambda\)-nonlinear boundary eigenvalue problems. (English) Zbl 0959.34066 J. Math. Anal. Appl. 247, No. 2, 331-355 (2000). Reviewer: Manfred Möller (Johannesburg) MSC: 34L05 34B07 47E05 PDFBibTeX XMLCite \textit{C. Tretter}, J. Math. Anal. Appl. 247, No. 2, 331--355 (2000; Zbl 0959.34066) Full Text: DOI