Results 81 to 90 of about 5,018 (185)

Concave function inequalities for sum of matrices

open access: yes
In this paper, we present some norm inequalities for concave functions, which generalize the main results in [Y. Zhang. Linear Algebra Appl., 574:60-66, 2019]
Zhang, Feng
core   +1 more source

Outer Synchronization between Fractional-Order Complex Networks: A Non-Fragile Observer-based Control Scheme

open access: yesEntropy, 2013
This paper addresses the global outer synchronization problem between two fractional-order complex networks coupled in a drive-response configuration. In particular, for a given fractional-order complex network composed of Lur’e systems, an observer-type
Meichun Zhao, Junwei Wang
doaj   +1 more source

On an Optimal -Control Problem in Coefficients for Linear Elliptic Variational Inequality

open access: yesAbstract and Applied Analysis, 2013
We consider optimal control problems for linear degenerate elliptic variational inequalities with homogeneous Dirichlet boundary conditions. We take the matrix-valued coefficients in the main part of the elliptic operator as controls in .
Olha P. Kupenko, Rosanna Manzo
doaj   +1 more source

Representation and stability of solutions of systems of functional differential equations with multiple delays

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
This paper is devoted to the study of systems of nonlinear functional differential equations with time-dependent coefficients and multiple variable increasing delays represented by functions $g_i(t)
Michal Pospíšil
doaj   +1 more source

Decentralized Integral-Based Event-Triggered Stabilization for Linear Plant with Actuator Saturation and Output Feedback

open access: yesApplied Sciences, 2016
This paper studies the integral-based event-triggered asymptotic stabilization for a continuous-time linear plant. Both actuator saturation and observer-based output feedback are considered.
Hongguang Zhang, Hao Yu, Fei Hao
doaj   +1 more source

On inequalities for A-numerical radius of operators

open access: yes, 2020
Let $A$ be a positive operator on a complex Hilbert space $\mathcal{H}.$ Inequalities are presented concerning upper and lower bounds for $A$-numerical radius of operators, which improve on and generalize the existing ones, studied recently in [A. Zamani.
Paul, Kallol   +2 more
core  

Inequalities and equalities for l = 2 (Sylvester), l = 3 (Frobenius), and l > 3 matrices [PDF]

open access: yes, 2016
This paper gives simple proofs of Sylvester (` = 2) and Frobenius (` = 3) inequalities. Moreover, a new sufficient condition for the equality of the Frobenius inequality is provided.
Thome, Néstor
core   +1 more source

On the estimation of upper bound for solutions of perturbed discrete Lyapunov equations

open access: yesJournal of Inequalities and Applications, 2006
The estimation of the positive definite solutions to perturbed discrete Lyapunov equations is discussed. Several upper bounds of the positive definite solutions are obtained when the perturbation parameters are norm-bounded uncertain.
Chen Dong-Yan, Wang De-Yu
doaj  

Generalized Picone and Riccati inequalities for half-linear differential operators with arbitrary elliptic matrices

open access: yesElectronic Journal of Differential Equations, 2010
Summary: We extend the well-known Picone identity for half-linear partial differential equations to equations with anisotropic \(p\)-Laplacian.
Simona Fisnarova, Robert Marik
openaire   +2 more sources

Simultaneous Method for Solving Certain Systems of Matrix Equations with Two Unknowns

open access: yesAxioms
Quantitative bisimulations between weighted finite automata are defined as solutions of certain systems of matrix-vector inequalities and equations. In the context of fuzzy automata and max-plus automata, testing the existence of bisimulations and their ...
Predrag S. Stanimirović   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy