Exportar Publicação

A publicação pode ser exportada nos seguintes formatos: referência da APA (American Psychological Association), referência do IEEE (Institute of Electrical and Electronics Engineers), BibTeX e RIS.

Exportar Referência (APA) 
Carvalho, L., Diogo, C., Mendes, S. & Soares, H. (2025). Quaternionic essential numerical range of complex operators. Linear and Multilinear Algebra. 73 (7), 1332-1345
Exportar Referência (IEEE) 
L. C. Carvalho et al.,  "Quaternionic essential numerical range of complex operators", in Linear and Multilinear Algebra, vol. 73, no. 7, pp. 1332-1345, 2025
Exportar BibTeX 
@article{carvalho2025_1765059626801,
	author = "Carvalho, L. and Diogo, C. and Mendes, S. and Soares, H.",
	title = "Quaternionic essential numerical range of complex operators",
	journal = "Linear and Multilinear Algebra",
	year = "2025",
	volume = "73",
	number = "7",
	doi = "10.1080/03081087.2024.2413653",
	pages = "1332-1345",
	url = "https://www.tandfonline.com/journals/glma20"
}
Exportar RIS 
TY  - JOUR
TI  - Quaternionic essential numerical range of complex operators
T2  - Linear and Multilinear Algebra
VL  - 73
IS  - 7
AU  - Carvalho, L.
AU  - Diogo, C.
AU  - Mendes, S.
AU  - Soares, H.
PY  - 2025
SP  - 1332-1345
SN  - 0308-1087
DO  - 10.1080/03081087.2024.2413653
UR  - https://www.tandfonline.com/journals/glma20
AB  - We study the essential numerical range of complex operators on a quaternionic Hilbert space and its relation with the essential S-spectrum. We give a new characterization of the essential numerical range relating it to the complex essential numerical range. Moreover, we show that the quaternionic essential numerical range of a normal operator is the convex hull of the essential S-spectrum.
ER  -