Results 31 to 40 of about 49 (48)

On the spectral norm of a doubly stochastic matrix and level-k circulant matrix

Special Matrices
A simple proof using Birkhoff theorem is given for the result that the spectral norm of a doubly stochastic matrix is 1. We also show that the result generalizes the results of İpek, Bozkurt, and Jiang and Zhou on circulant matrices and rr-circulant ...
Jiang Zhao-Lin, Tam Tin-Yau
doaj   +1 more source

[Pseudotumoral peritoneal tuberculosis: about 14 cases]. [PDF]

Pan Afr Med J, 2022
Bouchaib AE, Drissi J, Babahabib A, Elhassani MEM, Kouach J.   +4 more
europepmc   +1 more source

Crouzeix's conjecture, compressions of shifts, and classes of nilpotent matrices

Concrete Operators
This article studies the level set Crouzeix (LSC) conjecture, which is a weak version of Crouzeix’s conjecture that applies to finite compressions of the shift.
Bickel Kelly, Corbett Georgia, Glenning Annie, Guan Changkun, Vollmayr-Lee Martin   +4 more
doaj   +1 more source

Sustainable Mortars for Application in the Cultural Heritage Field. [PDF]

Materials (Basel), 2021
Monaco M, Aurilio M, Tafuro A, Guadagnuolo M.   +3 more
europepmc   +1 more source

The advantages and synergistic effects of Gunnera (Gundelia tournefortii L.) extract and protexin in chicken production. [PDF]

Vet Med Sci, 2021
Gholami-Ahangaran M, Haj-Salehi M, Ahmadi-Dastgerdi A, Zokaei M.   +3 more
europepmc   +1 more source

Heroin-Related Compounds and Metabolic Ratios in Postmortem Samples Using LC-MS-MS. [PDF]

J Anal Toxicol, 2021
Jakobsson G, Truver MT, Wrobel SA, Gréen H, Kronstrand R.   +4 more
europepmc   +1 more source

Dynamic right ventricular function response to incremental exercise in pulmonary hypertension. [PDF]

Pulm Circ, 2020
Singh I, Oliveira RKF, Heerdt P, Brown MB, Faria-Urbina M, Waxman AB, Systrom DM.   +6 more
europepmc   +1 more source

Effect of Low Versus High Tidal-Volume Total Liquid Ventilation on Pulmonary Inflammation. [PDF]

Front Physiol, 2020
Sage M, See W, Nault S, Morin C, Michalski C, Chabot B, Marouan S, Lavoie PM, Micheau P, Praud JP, Fortin-Pellerin É.   +10 more
europepmc   +1 more source

Some results of Heron mean and Young's inequalities. [PDF]

J Inequal Appl, 2018
Yang C, Ren Y.
europepmc   +1 more source

Extensions of interpolation between the arithmetic-geometric mean inequality for matrices. [PDF]

J Inequal Appl, 2017
Bakherad M, Lashkaripour R, Hajmohamadi M.   +2 more
europepmc   +1 more source