Results 51 to 60 of about 5,018 (185)

Binary positive semidefinite matrices and associated integer polytopes [PDF]

open access: yes, 2010
We consider the positive semidefinite (psd) matrices with binary entries, along with the corresponding integer polytopes.We begin by establishing some basic properties of these matrices and polytopes.
Sorensen, M M   +3 more
core  

Spectral linear matrix inequalities

open access: yes, 2021
We prove, under a certain representation theoretic assumption, that the set of real symmetric matrices, whose eigenvalues satisfy a linear matrix inequality, is itself a spectrahedron.
Kummer, Mario
core   +1 more source

Inequalities for J-Hermitian matrices

open access: yes, 2005
Indefinite versions of classical results of Schur, Ky Fan and Rayleigh-Ritz on Hermitian matrices are stated to J-Hermitian matrices, J = Ir ⊕ −In − r, 0 < r < n).
Lemos, Rute   +4 more
core   +2 more sources

Eigenvalues for Sums of Hermitian Matrices

open access: yes, 2023
In this thesis we explore how the eigenvalues of nxn Hermitian matrices A,B relate to the eigenvalues of their sum C=A+B. We mainly focus on inequalities bounding sums of r eigenvalues for C by sums of r eigenvalues for A with r eigenvalues for B, for ...
NC DOCKS at East Carolina University   +1 more
core  

Müntz linear transforms of Brownian motion [PDF]

open access: yes, 2014
We consider a class of Volterra linear transforms of Brownian motion associated to a sequence of Müntz Gaussian spaces and determine explicitly their kernels; the kernels take a simple form when expressed in terms of Müntz-Legendre polynomials. These are
Wu, Ching-Tang, Alili, Larbi
core   +1 more source

Dissipative stability theory for linear repetitive processes with application in iterative learning control [PDF]

open access: yes, 2009
This paper develops a new set of necessary and sufficient conditions for the stability of linear repetitive processes, based on a dissipative setting for analysis.
Steinbuch, M Maarten   +12 more
core  

Inequalities for permanents and permanental minors of row substochastic matrices

open access: yes, 2019
In this paper, some inequalities for permanents and permanental minors of row substochastic matrices are proved. The convexity of the permanent function on the interval between the identity matrix and an arbitrary row substochastic matrix is also proved.
Chen, Zhi   +4 more
core   +1 more source

Inequalities for totally nonnegative matrices: Gantmacher--Krein, Karlin, and Laplace

open access: yes, 2023
A real linear combination of products of minors which is nonnegative over all totally nonnegative (TN) matrices is called a determinantal inequality for these matrices.
Fallat, Shaun M.   +1 more
core   +1 more source

Transportation of measure, Young diagrams and random matrices. [PDF]

open access: yes, 2004
The theory of transportation of mesure for general cost functions is used to obtain a novel logarithmic Sobolev inequality for measures on phase spaces of high dimension and hence a concentration of measure inequality.
Blower, Gordon
core  

A norm inequality for three matrices [PDF]

open access: yes, 2022
We prove a Frobenius norm inequality for three matrices, analogous to the well-known Bottcher--Wenzel inequality. The situation is also similar: standard inequalities would yield an upper bound, which however can be reduced by means of further, detailed ...
László, Lajos
core   +1 more source

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