Bebiano, Natália; da Providência, João; Esmaeili, Fatemeh The characteristic polynomial of linear pencils of small size and the numerical range. (English) Zbl 1400.15021 Bebiano, Natália (ed.), Applied and computational matrix analysis. MAT-TRIAD, Coimbra, Portugal, September 7–11, 2015. Selected, revised contributions. Cham: Springer (ISBN 978-3-319-49982-6/hbk; 978-3-319-49984-0/ebook). Springer Proceedings in Mathematics & Statistics 192, 181-197 (2017). MSC: 15A60 15A15 PDFBibTeX XMLCite \textit{N. Bebiano} et al., Springer Proc. Math. Stat. 192, 181--197 (2017; Zbl 1400.15021) Full Text: DOI Link
Bebiano, Natália; da Providência, João; Nata, Ana; da Providência, João P. Fields of values of linear pencils and spectral inclusion regions. (English) Zbl 1402.65032 Bebiano, Natália (ed.), Applied and computational matrix analysis. MAT-TRIAD, Coimbra, Portugal, September 7–11, 2015. Selected, revised contributions. Cham: Springer (ISBN 978-3-319-49982-6/hbk; 978-3-319-49984-0/ebook). Springer Proceedings in Mathematics & Statistics 192, 165-179 (2017). MSC: 65F30 15A60 15A22 PDFBibTeX XMLCite \textit{N. Bebiano} et al., Springer Proc. Math. Stat. 192, 165--179 (2017; Zbl 1402.65032) Full Text: DOI Link