Liu, Yan; Shi, Yuming Stability of deficiency indices of Hermitian subspaces under relatively bounded perturbations. (English) Zbl 07518419 Linear Multilinear Algebra 70, No. 7, 1356-1368 (2022). MSC: 47A06 47A55 47B15 PDFBibTeX XMLCite \textit{Y. Liu} and \textit{Y. Shi}, Linear Multilinear Algebra 70, No. 7, 1356--1368 (2022; Zbl 07518419) Full Text: DOI arXiv
Shi, Yuming; Liu, Yan Trace class perturbation of closed linear relations. (English) Zbl 07311334 Linear Algebra Appl. 610, 837-858 (2021). MSC: 47A06 47A55 47B25 47A10 PDFBibTeX XMLCite \textit{Y. Shi} and \textit{Y. Liu}, Linear Algebra Appl. 610, 837--858 (2021; Zbl 07311334) Full Text: DOI arXiv
Shi, Yuming; Shao, Chunmei; Liu, Yan Resolvent convergence and spectral approximations of sequences of self-adjoint subspaces. (English) Zbl 1306.47051 J. Math. Anal. Appl. 409, No. 2, 1005-1020 (2014). MSC: 47D03 PDFBibTeX XMLCite \textit{Y. Shi} et al., J. Math. Anal. Appl. 409, No. 2, 1005--1020 (2014; Zbl 1306.47051) Full Text: DOI
Liu, Yan; Shi, Yuming Regular approximations of spectra of singular second-order symmetric linear difference equations. (English) Zbl 1286.39004 Linear Algebra Appl. 444, 183-210 (2014). MSC: 39A12 39A10 47A10 PDFBibTeX XMLCite \textit{Y. Liu} and \textit{Y. Shi}, Linear Algebra Appl. 444, 183--210 (2014; Zbl 1286.39004) Full Text: DOI