Results 31 to 40 of about 375 (52)

Matrix Hermite-Hadamard type inequalities [PDF]

open access: yes, 2013
We present several matrix and operator inequalities of Hermite-Hadamard type. We first establish a majorization version for monotone convex functions on matrices. We then utilize the Mond-Pecaric method to get an operator version for convex functions. We
Moslehian, Mohammad Sal
core  

M-matrices satisfy Newton's inequalities

open access: yes, 2005
Newton's inequalities $c_n^2 \ge c_{n-1}c_{n+1}$ are shown to hold for the normalized coefficients $c_n$ of the characteristic polynomial of any $M$- or inverse $M$-matrix.
Holtz, Olga
core   +1 more source

Improved Young and Heinz inequalities with the Kantorovich constant

open access: yes, 2015
In this article, we study the further refinements and reverses of the Young and Heinz inequalities with the Kantorovich constant. These modified inequalities are used to establish corresponding operator inequalities on Hilbert space and Hilbert-Schmidt ...
Liao, Wenshi, Wu, Junliang
core  

On the condition numbers of a multiple generalized eigenvalue

open access: yes, 2010
For standard eigenvalue problems, a closed-form expression for the condition numbers of a multiple eigenvalue is known. In particular, they are uniformly 1 in the Hermitian case, and generally take different values in the non-Hermitian case.
Nakatsukasa, Yuji
core  

Streptococcus pneumoniae Serotypes Associated with Death, South Africa, 2012-2018. [PDF]

open access: yesEmerg Infect Dis, 2022
Müller A   +7 more
europepmc   +1 more source

On the maximum of the permanent of (I-A)

open access: yes, 2017
Let A be an n by n doubly substochastic matrix and denote {\sigma}(A) the sum of all elements of A. In this paper we give the upper bound of the permanent of (I-A) with respect to n and {\sigma}(A)
Cao, Lei, Chen, Zhi
core  

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