Kurbanov, Sh. Kh.; Dustov, S. T. Puiseux series expansion for eigenvalue of the generalized Friedrichs model with the perturbation of rank one. (English) Zbl 07730183 Lobachevskii J. Math. 44, No. 4, 1365-1372 (2023). MSC: 81Q15 70H05 81U30 35B34 35P15 47A10 PDFBibTeX XMLCite \textit{Sh. Kh. Kurbanov} and \textit{S. T. Dustov}, Lobachevskii J. Math. 44, No. 4, 1365--1372 (2023; Zbl 07730183) Full Text: DOI
Lakaev, S. N.; Kurbanov, Sh. Kh.; Alladustov, Sh. U. Convergent expansions of eigenvalues of the generalized Friedrichs model with a rank-one perturbation. (English) Zbl 1480.81047 Complex Anal. Oper. Theory 15, No. 8, Paper No. 121, 16 p. (2021). MSC: 81Q10 81Q35 47A10 81U30 35B34 35P05 40A05 PDFBibTeX XMLCite \textit{S. N. Lakaev} et al., Complex Anal. Oper. Theory 15, No. 8, Paper No. 121, 16 p. (2021; Zbl 1480.81047) Full Text: DOI arXiv