Results 61 to 70 of about 5,018 (185)

Matrices and spectra satisfying the Newton inequalities

, 2009
An n-by-n real matrix is called a Newton matrix (and its eigenvalues a Newton spectrum) if the normalized coefficients of its characteristic polynomial satisfy the Newton inequalities.
Pisonero, M., Johnson, C. R.
core   +1 more source

Identification of Matrices Having a Sparse Representation

, 2008
We consider the problem of recovering a matrix from its action on a known vector in the setting where the matrix can be represented efficiently in a known matrix dictionary.
Pfander, Goetz E., Holger Rauhut, Pfander, Götz E., Jared Tanner, Rauhut, Holger, Tanner, Jared, Götz E. Pfander   +6 more
core   +1 more source

On positive and positive partial transpose matrices

, 2022
A block matrix $\left[ \begin{smallmatrix}A & X \\{{X}^{*}} & B \\\end{smallmatrix} \right]$ is positive partial transpose (PPT) if both $\left[ \begin{smallmatrix}A & X \\{{X}^{*}} & B \\\end{smallmatrix} \right]$ and $\left[ \begin ...
Moradi, Hamid, Gumus, Ibrahim, Sababheh, Mohammad   +2 more
core   +1 more source

The equality cases for the inequalities of Oppenheim and Schur for positive semi-definite matrices [PDF]

, 2009
summary:In this paper, necessary and sufficient conditions for equality in the inequalities of Oppenheim and Schur for positive semidefinite matrices are ...
Zhang, Xiao-Dong, Ding, Chang-Xing
core   +1 more source

State Control Design of Ostensible Metzler Linear Systems with Unsigned Input Parameters

Designs
This paper deals with the design of a complete state control for input unsigned, rank deficient matrix parameters of a linear system with system dynamics defined by ostensible structures of Metzler matrices.
Dušan Krokavec, Anna Filasová
doaj   +1 more source

Efficient MILP Modelings for Sboxes and Linear Layers of SPN ciphers

IACR Transactions on Symmetric Cryptology, 2020
Mixed Integer Linear Programming (MILP) solvers are regularly used by designers for providing security arguments and by cryptanalysts for searching for new distinguishers.
Christina Boura, Daniel Coggia
doaj   +1 more source

The Roles of Majorization and Generalized Triangular Decomposition in Communication and Signal Processing [PDF]

, 2011
Signal processing is an art that deals with the representation, transformation, and manipulation of the signals and the information they contain based on their specific features.
Weng, Ching-Chih
core   +1 more source

Finite-Time Admissibility and Controller Design for T-S Fuzzy Stochastic Singular Systems with Distinct Differential Term Matrices

Complexity, 2021
The finite-time admissibility analysis and controller design issues for extended T-S fuzzy stochastic singular systems (FSSSs) with distinct differential term matrices and Brownian parameter perturbations are discussed.
Liang Qiao, Zhaomin Lv
doaj   +1 more source

On Delay-Range-Dependent Stochastic Stability Conditions of Uncertain Neutral Delay Markovian Jump Systems

Journal of Applied Mathematics, 2013
The delay-range-dependent stochastic stability for uncertain neutral Markovian jump systems with interval time-varying delays is studied in this paper. The uncertainties under consideration are assumed to be time varying but norm bounded.
Xinghua Liu, Hongsheng Xi
doaj   +1 more source

The number of (0,1) - Matrices with fixed row and column sums

, 2013
Let R and S be non-negative and non-increasing vectors of order m and n respectively. We consider the set A(R, S) of all m x n matrices with entries restricted to {0, 1}.
Pule, Solomone Tahamano
core