Abstract
Hub-dominant matrices are natural extensions of hub matrices. In this article we study eigengaps of the Gram matrix associated with a hub-dominant matrix. A class of hub-dominant matrices is then constructed by using equiangular tight frames.
Original language | English (US) |
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Pages (from-to) | 1227-1242 |
Number of pages | 16 |
Journal | Applicable Analysis |
Volume | 90 |
Issue number | 8 |
DOIs | |
State | Published - Aug 1 2011 |
Keywords
- Arrowhead matrices
- Eigengaps
- Equiangular tight frames
- Hub matrices
ASJC Scopus subject areas
- Analysis
- Applied Mathematics