Results 1 to 10 of about 629 (50)
Veterinary Dermatology, Volume 33, Issue 4, Page 316-e73, August 2022., 2022 Abstract Background Pseudomonas aeruginosa is the most commonly isolated bacterium from skin lesions of dogs with post‐grooming furunculosis (PGF). It is frequently found in human hair and skin care products, and may pose a health risk to consumers. Information regarding the prevalence of P. aeruginosa contamination of dog grooming products is lacking.
Elad Perry +5 more
wiley +1 more source
On monotone Markov chains and properties of monotone matrix roots
Special Matrices, 2022 Monotone matrices are stochastic matrices that satisfy the monotonicity conditions as introduced by Daley in 1968. Monotone Markov chains are useful in modeling phenomena in several areas.
Guerry Marie-Anne
doaj +1 more source
Unique builders for classes of matrices
Special Matrices, 2021 Basic matrices are defined which provide unique building blocks for the class of normal matrices which include the classes of unitary and Hermitian matrices.
Hurley Ted
doaj +1 more source
On identities involving generalized harmonic, hyperharmonic and special numbers with Riordan arrays
Special Matrices, 2021 In this paper, by means of the summation property to the Riordan array, we derive some identities involving generalized harmonic, hyperharmonic and special numbers.
Koparal Sibel, Ömür Neşe, Duran Ömer
doaj +1 more source
M-matrix and inverse M-matrix extensions
Special Matrices, 2020 A class of matrices that simultaneously generalizes the M-matrices and the inverse M-matrices is brought forward and its properties are reviewed. It is interesting to see how this class bridges the properties of the matrices it generalizes and provides a
McDonald J.J. +6 more
doaj +1 more source
Perturbation analysis for the Takagi vector matrix
Special Matrices, 2021 In this article, we present some perturbation bounds for the Takagi vector matrix when the original matrix undergoes the additive or multiplicative perturbation. Two numerical examples are given to illuminate these bounds.
Farooq Aamir +4 more
doaj +1 more source
On the singular value decomposition of (skew-)involutory and (skew-)coninvolutory matrices
Special Matrices, 2020 The singular values σ > 1 of an n × n involutory matrix A appear in pairs (σ, 1σ{1 \over \sigma }). Their left and right singular vectors are closely connected. The case of singular values σ = 1 is discussed in detail. These singular values may appear in
Faßbender Heike, Halwaß Martin
doaj +1 more source
A note on adaptivity in factorized approximate inverse preconditioning
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020 The problem of solving large-scale systems of linear algebraic equations arises in a wide range of applications. In many cases the preconditioned iterative method is a method of choice.
Kopal Jiří +2 more
doaj +1 more source
Solving the Darwin problem in the first post-Newtonian approximation of general relativity [PDF]
, 1997 We analytically calculate the equilibrium sequence of the corotating binary stars of incompressible fluid in the first post-Newtonian(PN) approximation of general relativity.
A. Abramovici +26 more
core +3 more sources
Interior points of the completely positive cone. [PDF]
, 2008 A matrix A is called completely positive if it can be decomposed as A = BB^T with an entrywise nonnegative matrix B. The set of all such matrices is a convex cone.
Dür, Mirjam, Still, Georg
core +6 more sources