Results 61 to 70 of about 2,546,082 (211)
A large gap in a dilate of a set [PDF]
arXiv, 2020 Let $A \subset \mathbb{F}_p$ with $|A| > 1$. We show there is a $d \in \mathbb{F}_p^{\times}$ such that $d \cdot A$ contains a gap of size at least $2p/ |A| - 2 $.
arxiv
Refinements of the inequalities between Neuman-Sandor, arithmetic, contra-harmonic and quadratic means [PDF]
arXiv, 2012 In this paper, we prove that the inequalities $\alpha [1/3 Q(a,b)+2/3 A(a,b)]+(1-\alpha)Q^{1/3}(a,b)A^{2/3}(a,b)
arxiv
La lipoproteina (a): un fattore di rischio cardiovascolare complesso e polimorfo [PDF]
, 2022 Alfio Ernesto Bianchi +3 more
openalex +1 more source
Compact Subsets of the Glimm Space of a $C^*$-algebra [PDF]
arXiv, 2012 If $A$ is a $\sigma$-unital $C^*$-algebra and $a$ is a strictly positive element of $A$ then for every compact subset $K$ of the complete regularization $\mathrm{Glimm}(A)$ of $\mathrm{Prim}(A)$ there exists $\alpha > 0$ such that $K\subset \{G\in \mathrm{Glimm}(A) \mid \|a + G\|\geq \alpha\}$. This extends a 1974 result of J.
arxiv
International Journal of General Medicine, 2023 Bingyan Yu,1,2,* Xiangming Hu,2,* Jieliang Liu,2 Zhiqiang Nie,3 Ci Ren Luo Bu,4 Guang Li,2 Yingling Zhou,2 Haojian Dong2,4 1School of Medicine, South China University of Technology, Guangzhou, People’s Republic of China; 2Department of Cardiology,
Yu B +7 more
doaj
Recurrent Embolic Strokes of Undetermined Source in a Patient with Extreme Lipoprotein(a) Levels
Frontiers in Neurology, 2016 Lipoprotein(a) is a plasma lipoprotein and known cardiovascular risk factor most recently implicated in the development of high-risk carotid atherosclerotic plaques without significant carotid stenosis.
Zachary Bulwa +4 more
doaj +1 more source
Inverses of triangular matrices and bipartite graphs [PDF]
arXiv, 2013 To a given nonsingular triangular matrix A with entries from a ring, we associate a weighted bipartite graph G(A) and give a combinatorial description of the inverse of A by employing paths in G(A). Under a certain condition, nonsingular triangular matrices A such that A and A^{-1} have the same zero-nonzero pattern are characterized.
arxiv
Simplicity of Lie algebras of Poisson brackets [PDF]
arXiv, 2019 Let $A$ be an associative commutative algebra with $1$ over a field of zero characteristic, $\{,\} : A \times A \to A$ is a Poisson bracket, $Z = \{ a \in A \mid \{a, A\} = (0) \}.$ We prove that if $A$ is simple as a Poisson algebra then the Lie algebra $\frac{\{A,A\}}{\{A,A\}\cap Z}$ is simple.
arxiv
Optimal bounds for a Gaussian Arithmetic-Geometric type mean by quadratic and contraharmonic means [PDF]
arXiv, 2018 In this paper, we present the best possible parameters $\alpha_i, \beta_i\ (i=1,2,3)$ and $\alpha_4,\beta_4\in(1/2,1)$ such that the double inequalities \begin{align*} \alpha_1Q(a,b)+(1-\alpha_1)C(a,b)&
arxiv
Preparation of a stable fresh frozen primary lipoprotein[a] (Lp[a]) standard
Journal of Lipid Research, 1999 LP[a] is one of the most atherogenic lipoproteins consisting of an LDL-like core particle and a covalently linked glycoprotein of variable size.
Gert M. Kostner +3 more
doaj