On the numerical ranges of some tridiagonal matrices to Professor Leiba Rodman on the occasion of his 65th birthday

Ruey Ting Chien, Ilya M. Spitkovsky

Research output: Contribution to journalArticlepeer-review

Abstract

For certain tridiagonal matrices of small size, we give a complete description of flat portions on the boundary of their numerical range. We also discuss the conditions for these numerical ranges to be elliptical.

Original languageEnglish (US)
Pages (from-to)228-240
Number of pages13
JournalLinear Algebra and Its Applications
Volume470
DOIs
StatePublished - Apr 1 2015

Keywords

  • Numerical range
  • Tridiagonal matrices

ASJC Scopus subject areas

  • Algebra and Number Theory
  • Numerical Analysis
  • Geometry and Topology
  • Discrete Mathematics and Combinatorics

Fingerprint Dive into the research topics of 'On the numerical ranges of some tridiagonal matrices to Professor Leiba Rodman on the occasion of his 65th birthday'. Together they form a unique fingerprint.

Cite this