References
- Horn RA, Johnson CR. Topics in matrix analysis. Cambridge: Cambridge University Press; 1991.
- Gustafson K, Rao DKM. Numerical range: the field of values of linear operators and matrices. New York (NY): Springer; 1997.
- Tsai M-C, Wu PY. Numerical ranges of weighted shift matrices. Linear Algebra Appl. 2011;435:243–254.
- Horn RA, Johnson CR. Matrix analysis. Cambridge: Cambridge University Press; 1985.
- Tsai M-C. Numerical ranges of weighted shift matrices with periodic weights. Linear Algebra Appl. 2011;435:2296–2302.
- Stout QF. The numerical range of a weighted shift. Proc. Amer. Math. Soc. 1983;88:495–502.