Results 41 to 50 of about 640 (203)

Positivity and Asymptotic Stability of Descriptor Linear Systems with Regular Pencils

open access: yesArchives of Control Sciences, 2014
The positivity and asymptotic stability of the descriptor linear continuous-time and discrete-time systems with regular pencils are addressed. Necessary and sufficient conditions for the positivity and asymptotic stability of the systems are established ...
Kaczorek Tadeusz
doaj   +1 more source

State-Feedback Control in Descriptor Discrete-Time Fractional-Order Linear Systems: A Superstability-Based Approach

open access: yesApplied Sciences, 2021
In this article, the superstabilizing state-feedback control problem in descriptor discrete-time fractional-order linear (DDFL) systems with a regular matrix pencil is studied.
Kamil Borawski
doaj   +1 more source

Drazin Inverse of Jordan Form Matrix

open access: yes, 2019
One type of Generalized Inverse is Drazin Inverse, or some people say the spectral inverse. In this note, we pointed out that through Jordan Form Matrices, the Drazin Inverse is well understood. \\ {\tt The authors would like dedicated this note to Prof.
Teduh Wulandari Masoed, Agah D. Garnadi
core   +1 more source

Characteristics of Antarctic Stratospheric Variability During Winter: A Case Study of the 2024 Sudden Stratospheric Warming and Its Surface Impacts

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 1, 16 January 2026.
Abstract In mid‐winter 2024, extraordinary stratospheric warming occurred over the sub‐Antarctic region with two distinctive warming maxima in mid‐July to early August, followed by record negative anomalies in the southern annular mode (SAM) during late July to early August.
Eun‐Pa Lim   +9 more
wiley   +1 more source

Bordering method to compute Core-EP inverse

open access: yesSpecial Matrices, 2018
Following the work of Kentaro Nomakuchi[10] and Manjunatha Prasad et.al., [7] which relate various generalized inverses of a given matrix with suitable bordering,we describe the explicit bordering required to obtain core-EP inverse, core-EP generalized ...
Prasad K. Manjunatha, Raj M. David
doaj   +1 more source

Solution of Singular Fuzzy Fraction order Control Systems via Drazin inverse

open access: yesJournal of Kufa for Mathematics and Computer, 2017
In this paper , we investigate solution for singular fuzzy fractional order control system , which in turn gives us two subsystem by drazin inverse . One of these subsystems contain fuzzy fractional order control system used fuzzy laplace transform as
Alaa Muhsien Abd
doaj   +1 more source

Displacement rank of the Drazin inverse

open access: yes, 2004
In this paper, we study the displacement rank of the Drazin inverse. Both Sylvester displacement and the generalized displacement are discussed. We present upper bounds for the ranks of the displacements of the Drazin inverse.
Wei, Yimin, Qiao, Sanzheng, Diao, Huaian
core   +1 more source

On the β$$ \beta $$‐effect in the baroclinic instability of a continuously stratified atmosphere

open access: yesQuarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.
We solve the quasi‐geostrophic equation numerically to analyze baroclinic instability in a continuously stratified atmosphere. On the β$$ \beta $$‐plane, deviations from classical models alter instability growth rates and modal structures, leading to the emergence of unstable lobes and a stable region at very large wavelengths.
Juan Vázquez Portillo, Antonio Segalini
wiley   +1 more source

Class of (n, m)-Power-D-Hyponormal Operators in Hilbert Space

open access: yesInternational Journal of Analysis and Applications, 2020
In this paper, we introduce a new classes of operators acting on a complex Hilbert space H, denoted by [(n, m)DH], called (n, m)-power-D-hyponormal associated with a Drazin inversible operator using its Drazin inverse.
Cherifa Chellali, Abdelkader Benali
doaj  

Additive perturbation results for the Drazin inverse

open access: yes, 2005
In this paper some new additive results for the Drazin inverse are presented. We give a formula for the Drazin inverse of a sum of two matrices under conditions on the matrices less restrictive than those imposed in the corresponding theorem given by ...
González, N. Castro
core   +1 more source

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