Results 1 to 10 of about 49 (48)

Eigenvalue Localization Inequalities for Complex Matrices With Order n≥3

open access: yesAdvances in Mathematical Physics
MSC2020 Classification: 15A18, 15A60 ...
Rong Ma, Feng Zhang
doaj   +2 more sources

Sensitivity of a Hymenoptera serological immunoglobulin (Ig)E assay for the diagnosis of venom hypersensitivity in dogs

open access: yesVeterinary Dermatology, Volume 34, Issue 6, Page 543-553, December 2023., 2023
Background – Hymenoptera envenomation with honey bee (Apis mellifera) and paper wasp (Polistes spp.) may cause life‐threatening anaphylaxis in dogs. In human patients, clinical history, intradermal testing (IDT) and measurement of allergen‐specific serological immunoglobulin (Ig)E (sIgE) are used to support a diagnosis of Hymenoptera venom ...
Hilary H. Chan   +3 more
wiley   +1 more source

Evaluation of the effects of chlorhexidine digluconate with and without cBD103 or cCath against multidrug‐resistant clinical isolates of Staphylococcus pseudintermedius

open access: yesVeterinary Dermatology, Volume 33, Issue 1, Page 17-e6, February 2022., 2022
Background – Because of the increased incidence of multidrug‐resistant (MDR) bacteria, the use of disinfectants over antibiotics has been encouraged. However, the interactions between disinfectants and host local immunity are poorly understood. Objective – To assess the effects of chlorhexidine digluconate (Chx), with and without selected host defence ...
Domenico Santoro   +3 more
wiley   +1 more source

On partial isometries with circular numerical range

open access: yesConcrete Operators, 2021
In their LAMA 2016 paper Gau, Wang and Wu conjectured that a partial isometry A acting on ℂn cannot have a circular numerical range with a non-zero center, and proved this conjecture for n ≤ 4. We prove it for operators with rank A = n − 1 and any n.
Wegert Elias, Spitkovsky Ilya
doaj   +1 more source

Dynamical study of Lyapunov exponents for Hide’s coupled dynamo model

open access: yesDemonstratio Mathematica, 2021
In this paper, we introduced the Lyapunov exponents (LEs) as a significant tool that is used to study the numerical solution behavior of the dynamical systems. Moreover, Hide’s coupled dynamo model presents a valuable dynamical study.
Alresheedi Teflah, Allahem Ali
doaj   +1 more source

The Numerical Range of C*ψ Cφ and Cφ C*ψ

open access: yesConcrete Operators, 2021
In this paper we investigate the numerical range of C*bφm Caφn and Caφn C*bφm on the Hardy space where φ is an inner function fixing the origin and a and b are points in the open unit disc.
Clifford John   +2 more
doaj   +1 more source

Further extensions of Hartfiel’s determinant inequality to multiple matrices

open access: yesSpecial Matrices, 2021
Following the recent work of Zheng et al., in this paper, we first present a new extension Hartfiel’s determinant inequality to multiple positive definite matrices, and then we extend the result to a larger class of matrices, namely, matrices whose ...
Luo Wenhui
doaj   +1 more source

On 3-by-3 row stochastic matrices

open access: yesSpecial Matrices, 2023
The known constructive tests for the shapes of the numerical ranges in the 3-by-3 case are further specified when the matrices in question are row stochastic. Auxiliary results on the unitary (ir)reducibility of such matrices are also obtained.
Pham Nhi, Spitkovsky Ilya M.
doaj   +1 more source

Inverse properties of a class of seven-diagonal (near) Toeplitz matrices

open access: yesSpecial Matrices, 2021
This paper presents the explicit inverse of a class of seven-diagonal (near) Toeplitz matrices, which arises in the numerical solutions of nonlinear fourth-order differential equation with a finite difference method.
Kurmanbek Bakytzhan   +2 more
doaj   +1 more source

New versions of refinements and reverses of Young-type inequalities with the Kantorovich constant

open access: yesSpecial Matrices, 2023
Recently, some Young-type inequalities have been promoted. The purpose of this article is to give further refinements and reverses to them with Kantorovich constants.
Rashid Mohammad H. M., Bani-Ahmad Feras
doaj   +1 more source

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