Deng, Lin; Xu, Jinli Linear maps preserving rank of tensor products of symmetric matrices. (Chinese. English summary) Zbl 1488.15052 J. Nat. Sci. Heilongjiang Univ. 38, No. 2, 143-149 (2021). MSC: 15A86 15A04 15A69 PDFBibTeX XMLCite \textit{L. Deng} and \textit{J. Xu}, J. Nat. Sci. Heilongjiang Univ. 38, No. 2, 143--149 (2021; Zbl 1488.15052) Full Text: DOI
Chen, Zhengxin; Zhao, Yu’e Strong commutativity preserving maps of upper triangular matrix Lie algebras over a commutative ring. (English) Zbl 1480.15002 Bull. Korean Math. Soc. 58, No. 4, 973-981 (2021). Reviewer: Janko Marovt (Maribor) MSC: 15A04 15A27 15A86 PDFBibTeX XMLCite \textit{Z. Chen} and \textit{Y. Zhao}, Bull. Korean Math. Soc. 58, No. 4, 973--981 (2021; Zbl 1480.15002) Full Text: DOI
Benner, Peter; Fassbender, Heike; Saltenberger, Philip A rational even-IRA algorithm for the solution of \(T\)-even polynomial eigenvalue problems. (English) Zbl 1528.65021 SIAM J. Matrix Anal. Appl. 42, No. 3, 1172-1198 (2021). MSC: 65F15 65F99 15A18 15A54 15B57 PDFBibTeX XMLCite \textit{P. Benner} et al., SIAM J. Matrix Anal. Appl. 42, No. 3, 1172--1198 (2021; Zbl 1528.65021) Full Text: DOI arXiv
Gao, Tingran; Brodzki, Jacek; Mukherjee, Sayan The geometry of synchronization problems and learning group actions. (English) Zbl 1456.05105 Discrete Comput. Geom. 65, No. 1, 150-211 (2021). MSC: 05C50 62H30 57R22 58A14 28D05 35B65 35J60 49N90 49Q20 PDFBibTeX XMLCite \textit{T. Gao} et al., Discrete Comput. Geom. 65, No. 1, 150--211 (2021; Zbl 1456.05105) Full Text: DOI arXiv Link