Results 31 to 40 of about 5,018 (185)

Interval observers design for systems with ostensible Metzler system matrices

open access: yesFrontiers in Aerospace Engineering, 2023
This paper attempts to resolve the problem concerning the interval observers design for linear systems with ostensible Metzler system matrices. Because system dynamics matrices are partially different from strictly Metzler structures, a solution is ...
Dušan Krokavec, Anna Filasová
doaj   +1 more source

A Maximum Entropy Approach to the Realizability of Spin Correlation Matrices

open access: yesEntropy, 2013
Deriving the form of the optimal solution of a maximum entropy problem, we obtain an infinite family of linear inequalities characterizing the polytope of spin correlation matrices.
Michele Pavon   +2 more
doaj   +1 more source

Complexity results for the gap inequalities for the max-cut problem [PDF]

open access: yes, 2012
We prove several complexity results about the gap inequalities for the max-cut problem, including (i) the gap-1 inequalities do not imply the other gap inequalities, unless NP=Co NP; (ii) there must exist non-redundant gap inequalities with exponentially
Galli, Laura   +3 more
core   +1 more source

Stability Analysis for a Class of Discrete-Time Nonhomogeneous Markov Jump Systems with Multiplicative Noises

open access: yesComplexity, 2018
This paper is concerned with a class of discrete-time nonhomogeneous Markov jump systems with multiplicative noises and time-varying transition probability matrices which are valued on a convex polytope. The stochastic stability and finite-time stability
Shaowei Zhou   +3 more
doaj   +1 more source

On Symmetric Matrices whose Eigenvalues Satisfy Linear Inequalities [PDF]

open access: yesProceedings of the American Mathematical Society, 1966
Moreover every such matrix can be represented as a sum of n matrices of the same type that have rank < 1 (corresponding to the representation of definite forms as sums of squares of linear forms). We have here an instance of a system of linear inequalities (lb) for the eigenvalues of a matrix that is equivalent to a system of linear inequalities (la ...
openaire   +2 more sources

Further Inequalities for the Weighted Numerical Radius of Operators

open access: yesMathematics, 2022
This paper deals with the so-called A-numerical radius associated with a positive (semi-definite) bounded linear operator A acting on a complex Hilbert space H. Several new inequalities involving this concept are established.
Najla Altwaijry   +2 more
doaj   +1 more source

Some analogues of Knopp’s core theorem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1979
Inequalities between certain functionals on the space of bounded real sequences are considered. Such inequalities being analogues of the classical theorem of Knopp on the core of a sequence.
I. J. Maddox
doaj   +1 more source

Nonlinear Fault-Tolerant Control Design for Singular Stochastic Systems With Fractional Stochastic Noise and Time-Delay

open access: yesIEEE Access, 2021
This work focuses on the stabilization issue for a class of singular stochastic systems against fractional Gaussian noise driven by fractional Brownian motion.
S. Sweetha   +3 more
doaj   +1 more source

Simultaneous solution of linear equations and inequalities in max-algebra [PDF]

open access: yes, 2011
summary:Let $a øplus b=\max(a,b)$ and $a øtimes b = a+b$ for $a,b\in{\mathbb{R}}$. Max-algebra is an analogue of linear algebra developed on the pair of operations $(øplus, øtimes)$ extended to matrices and vectors. The system of equations $A øtimes x=b$
Aminu, Abdulhadi
core   +1 more source

A Novel Approach to Delay-Variation-Dependent Stability Analysis of 2-D Discrete-Time Systems With Mixed Delays

open access: yesIEEE Access, 2019
In this paper, a stability analysis problem is studied for a class of two-dimensional (2-D) discrete-time systems with time-varying and distributed delays described by the second Fornasini-Marchesini (FM) model. First, new 2-D polynomials-based summation
Dan Peng, Hongshuang Xu
doaj   +1 more source

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