Results 11 to 20 of about 371 (70)
Serum concentrations of IL‐31 in dogs with nonpruritic mast cell tumours or lymphoma
Veterinary Dermatology, Volume 31, Issue 6, Page 466-e124, December 2020., 2020 Background The aim of this study was to compare serum interleukin (IL)‐31 concentrations in dogs with lymphoma and mast cell tumours (MCT) without pruritus to those of healthy dogs. Hypothesis/Objectives To determine if IL‐31 plays a role in tumour pathogenesis and if IL‐31 could be a biological marker for disease progression.
Nataliia Ignatenko +8 more
wiley +1 more source
Veterinary Dermatology, Volume 27, Issue 5, Page 391-e98, October 2016., 2016 Background– Pseudomonas aeruginosa (PA) may cause suppurative otitis externa with severe inflammation and ulceration in dogs. Multidrug resistance is commonly reported for this organism, creating a difficult therapeutic challenge. Objective– The aim of this study was to evaluate the in vitro antimicrobial activity of a gel containing 0.5 µg/mL of ...
Giovanni Ghibaudo +6 more
wiley +1 more source
Matrix measure and application to stability of matrices and interval dynamical systems
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 2, Page 75-85, 2003., 2003 Using some properties of the matrix measure, we obtain a general condition for the stability of a convex hull of matrices that will be applied to study the stability of interval dynamical systems. Some classical results from stability theory are reproduced and extended.
Ziad Zahreddine
wiley +1 more source
The Dittert′s function on a set of nonnegative matrices
International Journal of Mathematics and Mathematical Sciences, Volume 13, Issue 4, Page 709-716, 1990., 1990 Let Kn denote the set of all n × n nonnegative matrices with entry sum n. For X ∈ Kn with row sum vector (r1, …, rn), column sum vector (c1, …, cn), Let ϕ(X)=∏iri+∏jcj−perX. Dittert′s conjecture asserts that ϕ(X) ≤ 2 − n!/nn for all X ∈ Kn with equality iff X = [1/n]n×n. This paper investigates some properties of a certain subclass of Kn related to the
Suk Geun Hwang, Mun-Gu Sohn, Si-Ju Kim
wiley +1 more source
New error bounds for linear complementarity problems of Σ-SDD matrices and SB-matrices
Open Mathematics, 2019 A new error bound for the linear complementarity problem (LCP) of Σ-SDD matrices is given, which depends only on the entries of the involved matrices. Numerical examples are given to show that the new bound is better than that provided by García-Esnaola ...
Hou Zhiwu, Jing Xia, Gao Lei
doaj +1 more source
A new upper bound on the largest normalized Laplacian eigenvalue
, 2013 Let G be a simple undirected connected graph on n vertices. Suppose that the vertices of G are labelled 1,2, . . . ,n. Let di be the degree of the vertex i.
O. Rojo, R. Soto
semanticscholar +1 more source
Reverses and variations of Young's inequalities with Kantorovich constant
, 2016 In this paper, we obtain some improved Young and Heinz inequalities and the reverse versions for scalars and matrices with Kantorovich constant, equipped with the Hilbert-Schmidt norm, and then we present the corresponding interpolations of recent ...
Haisong Cao, Junliang Wu
semanticscholar +1 more source
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
Lattice-like operations and isotone projection sets [PDF]
, 2013 By using some lattice-like operations which constitute extensions of ones introduced by M. S. Gowda, R. Sznajder and J. Tao for self-dual cones, a new perspective is gained on the subject of isotonicity of the metric projection onto the closed convex ...
Németh, A. B., Németh, S. Z.
core +1 more source
, 1998 The matrix pencil (A,B) = {tB-A | t \in C} is considered under the assumptions that A is entrywise nonnegative and B-A is a nonsingular M-matrix. As t varies in [0,1], the Z-matrices tB-A are partitioned into the sets L_s introduced by Fiedler and ...
Driessche, P. van den +4 more
core +2 more sources