Krein Space Numerical Range of Block Matrices -- a Unified Approach to the Hyperbolic Case
Fuente:
arXiv
Saved in:
| Main Authors: | Bebiano, N., Lemos, R., Soares, G. |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
On the ellipticity of the higher rank numerical range
by: Bebiano, Natália, et al.
Published: (2025)
by: Bebiano, Natália, et al.
Published: (2025)
On the Operators with Numerical Range in an Ellipse
by: Agler, Jim, et al.
Published: (2023)
by: Agler, Jim, et al.
Published: (2023)
Matrices with Hyperbolical Krein Space Numerical Range
by: Bebiano, N., et al.
Published: (2024)
by: Bebiano, N., et al.
Published: (2024)
Numerical Radius Inequalities via Orlicz function
by: Bhunia, Pintu, et al.
Published: (2024)
by: Bhunia, Pintu, et al.
Published: (2024)
$q$-Numerical Ranges and Spectral Sets
by: O'Loughlin, Ryan, et al.
Published: (2026)
by: O'Loughlin, Ryan, et al.
Published: (2026)
On the $A$-$q$-Numerical Range of Operators in Semi-Hilbertian Spaces
by: Rani, Jyoti, et al.
Published: (2025)
by: Rani, Jyoti, et al.
Published: (2025)
Leaf as a Poincaré convex domain associated with an endomorphism on a real inner product space
by: Ogawa, Hiroyuki
Published: (2024)
by: Ogawa, Hiroyuki
Published: (2024)
Norm of an operator with numerical range in a sector
by: Li, Chi-Kwong, et al.
Published: (2024)
by: Li, Chi-Kwong, et al.
Published: (2024)
The numerical range of periodic banded Toeplitz operators
by: Itzá-Ortiz, Benjamín A., et al.
Published: (2023)
by: Itzá-Ortiz, Benjamín A., et al.
Published: (2023)
Tightening Bounds on the Numerical Radius for Hilbert Space Operators
by: Jalili, Maryam, et al.
Published: (2025)
by: Jalili, Maryam, et al.
Published: (2025)
A new norm on the space of reproducing kernel Hilbert space operators and Berezin number inequalities
by: Nayak, Raj Kumar, et al.
Published: (2025)
by: Nayak, Raj Kumar, et al.
Published: (2025)
Refined numerical radius estimates and Euclidean operator radius
by: Bhunia, Pintu, et al.
Published: (2026)
by: Bhunia, Pintu, et al.
Published: (2026)
Development of inequality and characterization of equality conditions for the numerical radius
by: Bhunia, Pintu, et al.
Published: (2021)
by: Bhunia, Pintu, et al.
Published: (2021)
Numerical radius inequalities for tensor product of operators
by: Sen, Anirban, et al.
Published: (2022)
by: Sen, Anirban, et al.
Published: (2022)
Orthogonality and Numerical radius inequalities of operator matrices
by: Mal, Arpita, et al.
Published: (2019)
by: Mal, Arpita, et al.
Published: (2019)
Linear preservers of parallel matrix pairs with respect to the $k$-numerical radius
by: Kuzma, Bojan, et al.
Published: (2024)
by: Kuzma, Bojan, et al.
Published: (2024)
The numerical radius of fractional powers of matrices
by: Aldabbas, Eman, et al.
Published: (2025)
by: Aldabbas, Eman, et al.
Published: (2025)
Further bounds on $q$-numerical radius of Hilbert space operators
by: Sahoo, Satyajit, et al.
Published: (2025)
by: Sahoo, Satyajit, et al.
Published: (2025)
Generalized numerical radius inequalities for certain operator matrices
by: Sahoo, Satyajit, et al.
Published: (2025)
by: Sahoo, Satyajit, et al.
Published: (2025)
Sharper bounds for the numerical radius of $n \times n$ operator matrices II
by: Bhunia, Pintu
Published: (2024)
by: Bhunia, Pintu
Published: (2024)
Refinements of generalized Euclidean operator radius inequalities of 2-tuple operators
by: Jana, Suvendu, et al.
Published: (2023)
by: Jana, Suvendu, et al.
Published: (2023)
Numerical radius inequalities of operator matrices with applications
by: Bhunia, Pintu, et al.
Published: (2019)
by: Bhunia, Pintu, et al.
Published: (2019)
The algebraic numerical range as a spectral set in Banach algebras
by: Blazhko, Hanna, et al.
Published: (2024)
by: Blazhko, Hanna, et al.
Published: (2024)
$q$-Numerical Radius Estimates in Semi-Hilbertian Spaces and Their Relations with Matrix Means for Sectorial Matrices
by: Rani, Jyoti
Published: (2026)
by: Rani, Jyoti
Published: (2026)
On the Crouzeix ratio for $N\times N$ matrices
by: Malman, Bartosz, et al.
Published: (2024)
by: Malman, Bartosz, et al.
Published: (2024)
Bounds of numerical radius of bounded linear operator using $t$-Aluthge transform
by: bag, Santanu, et al.
Published: (2019)
by: bag, Santanu, et al.
Published: (2019)
Zero-dilation indices and numerical ranges
by: Rosa, Kennett L. Dela
Published: (2024)
by: Rosa, Kennett L. Dela
Published: (2024)
Lower and upper bounds of joint $(f,δ)$-numerical radius functions
by: Ismailov, Zameddin I., et al.
Published: (2026)
by: Ismailov, Zameddin I., et al.
Published: (2026)
Improved inequalities for the numerical radius via Cartesian decomposition
by: Bhunia, Pintu, et al.
Published: (2021)
by: Bhunia, Pintu, et al.
Published: (2021)
Convergence estimates for the Magnus expansion II. $C^*$-algebras
by: Lakos, Gyula
Published: (2019)
by: Lakos, Gyula
Published: (2019)
Bounds for zeros of a polynomial using numerical radius of Hilbertian space operators
by: Bhunia, Pintu, et al.
Published: (2019)
by: Bhunia, Pintu, et al.
Published: (2019)
Proper improvement of well-known numerical radius inequalities and their applications
by: Bhunia, Pintu, et al.
Published: (2020)
by: Bhunia, Pintu, et al.
Published: (2020)
Strengthening of spectral radius, numerical radius, and Berezin radius inequalities
by: Bhunia, Pintu
Published: (2025)
by: Bhunia, Pintu
Published: (2025)
Improved Upper Bounds for Numerical Radius Inequalities of Operator Matrices and Their Applications
by: Rashid, M. H. M.
Published: (2025)
by: Rashid, M. H. M.
Published: (2025)
Joint $q$-Numerical Ranges of Operators in Hilbert and Semi-Hilbert Spaces
by: Feki, Kais, et al.
Published: (2024)
by: Feki, Kais, et al.
Published: (2024)
Describing the Numerical Range and $C$-Numerical Range of Matrices via Their Unitary Orbits and the Joukowsky Transform
by: O'Loughlin, Ryan
Published: (2025)
by: O'Loughlin, Ryan
Published: (2025)
$A$-Davis-Wielandt Radius Bounds of Semi-Hilbertian Space Operators
by: Guesba, Messaoud, et al.
Published: (2024)
by: Guesba, Messaoud, et al.
Published: (2024)
Minimal compact operators, subdifferential of the maximum eigenvalue and semi-definite programming
by: Bottazzi, Tamara, et al.
Published: (2024)
by: Bottazzi, Tamara, et al.
Published: (2024)
Numerical radius and $\ell_p$ operator norm of Kronecker products and Schur powers: inequalities and equalities
by: Bhunia, Pintu, et al.
Published: (2025)
by: Bhunia, Pintu, et al.
Published: (2025)
On the estimation of the $q$-numerical radius via Orlicz functions
by: Kittaneh, Fuad, et al.
Published: (2025)
by: Kittaneh, Fuad, et al.
Published: (2025)
Similar Items
-
On the ellipticity of the higher rank numerical range
by: Bebiano, Natália, et al.
Published: (2025) -
On the Operators with Numerical Range in an Ellipse
by: Agler, Jim, et al.
Published: (2023) -
Matrices with Hyperbolical Krein Space Numerical Range
by: Bebiano, N., et al.
Published: (2024) -
Numerical Radius Inequalities via Orlicz function
by: Bhunia, Pintu, et al.
Published: (2024) -
$q$-Numerical Ranges and Spectral Sets
by: O'Loughlin, Ryan, et al.
Published: (2026)