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ON THE CIRCULAR NUMERICAL RANGE OF 5-BY-5 PARTIAL ISOMETRIES.
- Source :
-
Bulletin of the Transilvania University of Braşov: Series III Mathematics & Computer Science . 2023, Vol. 65 Issue 1, p57-75. 19p. - Publication Year :
- 2023
-
Abstract
- We prove, in some cases in term of kippenhahn curve, that if 5-by-5 partial isometry whose numerical range is a circular disc then its center is must be the origin. This gives a partial affirmative answer of the Conjecture 5.1. of [H. l. Gau et al., Linear and Multilinear Algebra, 64 (1) 2016, 14-35.], for the five dimensional case. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MULTILINEAR algebra
*LOGICAL prediction
Subjects
Details
- Language :
- English
- ISSN :
- 28102029
- Volume :
- 65
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Bulletin of the Transilvania University of Braşov: Series III Mathematics & Computer Science
- Publication Type :
- Academic Journal
- Accession number :
- 164950673
- Full Text :
- https://doi.org/10.31926/but.mif.2023.3.65.1.5