Jeribi essential and Jeribi essential pseudo S-spectra in right quaternionic Hilbert space
In this note, we extend our exploration of the essential S-spectrum and introduce the class of Jeribi essential pseudo S-spectrum for bounded right linear operators over the right quaternionic Hilbert space. We explore several properties and the stability of the essential S-spectrum and essential pseudo S-spectrum of this class. Furthermore, we study relationships between the Jeribi essential S-spectrum and other essential S-spectra while investigating the correlation of the essential S-spectrum of this class for 2 × 2 block operator matrices with their components and formulating a characterization of the Jeribi essential S-spectrum for the summation of two bounded linear operators. The study concludes by introducing the notion of essential pseudo S-spectrum of this class and exploration of some of the algebraic properties.
Authors
- Preeti Dharmarha (ORCID: https://orcid.org/0000-0003-4174-5183)
- Sony Kumari (ORCID: https://orcid.org/0009-0002-7463-5888)
Institutions
- University of Delhi (IN)
- Jai Prakash University (IN)
Publication Details
- Journal
- Journal of Mathematical Physics
- Published
- 2026-02-01
- DOI
- https://doi.org/10.1063/5.0278457
- Primary Topic
- Holomorphic and Operator Theory
- Type
- article
- Field-Weighted Citation Impact
- 0.00