A note on classes of structured matrices with elliptical type numerical range

Natália Bebiano; Susana Furtado

Czechoslovak Mathematical Journal (2021)

  • Volume: 71, Issue: 4, page 1015-1023
  • ISSN: 0011-4642

Abstract

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We identify new classes of structured matrices whose numerical range is of the elliptical type, that is, an elliptical disk or the convex hull of elliptical disks.

How to cite

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Bebiano, Natália, and Furtado, Susana. "A note on classes of structured matrices with elliptical type numerical range." Czechoslovak Mathematical Journal 71.4 (2021): 1015-1023. <http://eudml.org/doc/298243>.

@article{Bebiano2021,
abstract = {We identify new classes of structured matrices whose numerical range is of the elliptical type, that is, an elliptical disk or the convex hull of elliptical disks.},
author = {Bebiano, Natália, Furtado, Susana},
journal = {Czechoslovak Mathematical Journal},
keywords = {tridiagonal matrix; antitridiagonal matrix; elliptical disk; numerical range},
language = {eng},
number = {4},
pages = {1015-1023},
publisher = {Institute of Mathematics, Academy of Sciences of the Czech Republic},
title = {A note on classes of structured matrices with elliptical type numerical range},
url = {http://eudml.org/doc/298243},
volume = {71},
year = {2021},
}

TY - JOUR
AU - Bebiano, Natália
AU - Furtado, Susana
TI - A note on classes of structured matrices with elliptical type numerical range
JO - Czechoslovak Mathematical Journal
PY - 2021
PB - Institute of Mathematics, Academy of Sciences of the Czech Republic
VL - 71
IS - 4
SP - 1015
EP - 1023
AB - We identify new classes of structured matrices whose numerical range is of the elliptical type, that is, an elliptical disk or the convex hull of elliptical disks.
LA - eng
KW - tridiagonal matrix; antitridiagonal matrix; elliptical disk; numerical range
UR - http://eudml.org/doc/298243
ER -

References

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