Spectral Properties of n-perinormal operators
, 2012 In this paper we study spectral properties of class (M,n) or n -perinormal operators. It is shown that if T belongs to class (M,n) , then its point spectrum and joint point spectrum are identical.
S. Mécheri, N. Braha
semanticscholar +1 more source
A simulation algorithm for a single server retrial queuing system with batch arrivals
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015 Many systems of real word are modeled by retrial queuing system with batch arrivals. Analytical formulas for this class of systems are complicated and address only particular cases.
Florea Ion, Nǎnǎu Corina-Ştefania
doaj +1 more source
antiSMASH 5.0: updates to the secondary metabolite genome mining pipeline
Nucleic Acids Res., 2019 Secondary metabolites produced by bacteria and fungi are an important source of antimicrobials and other bioactive compounds. In recent years, genome mining has seen broad applications in identifying and characterizing new compounds as well as in ...
K. Blin +7 more
semanticscholar +1 more source
Schatten p-norm inequalities related to a characterization of inner product spaces
, 2008 Let $A_1, ... A_n$ be operators acting on a separable complex Hilbert space such that $\sum_{i=1}^n A_i=0$. It is shown that if $A_1, ... A_n$ belong to a Schatten $p$-class, for some $p>0$, then 2^{p/2}n^{p-1} \sum_{i=1}^n \|A_i\|^p_p \leq \sum_{i,j=1 ...
Hirzallah, O. +2 more
core +2 more sources
Enhanced secondary pollution offset reduction of primary emissions during COVID-19 lockdown in China
National Science Review, 2020 To control the spread of the 2019 novel coronavirus (COVID-19), China imposed nationwide restrictions on the movement of its population (lockdown) after the Chinese New Year of 2020, leading to large reductions in economic activities and associated ...
Xin Huang +26 more
semanticscholar +1 more source
Dysbiosis-Induced Secondary Bile Acid Deficiency Promotes Intestinal Inflammation.
Cell Host and Microbe, 2020 Secondary bile acids (SBAs) are derived from primary bile acids (PBAs) in a process reliant on biosynthetic capabilities possessed by few microbes. To evaluate the role of BAs in intestinal inflammation, we performed metabolomic, microbiome, metagenomic,
S. Sinha +14 more
semanticscholar +1 more source
Positivity of Partitioned Hermitian Matrices with Unitarily Invariant Norms
, 2014 We give a short proof of a recent result of Drury on the positivity of a $3\times 3$ matrix of the form $(\|R_i^*R_j\|_{\rm tr})_{1 \le i, j \le 3}$ for any rectangular complex (or real) matrices $R_1, R_2, R_3$ so that the multiplication $R_i^*R_j$ is ...
Li, Chi-Kwong, Zhang, Fuzhen
core +1 more source
A Gr\"uss type operator inequality [PDF]
, 2016 In [P. Renaud, "A matrix formulation of Gr\"uss inequality", Linear Algebra Appl. 335 (2001), 95--100] it was proved an operator inequality involving the usual trace functional.
Bottazzi, Tamara, Conde, Cristian
core +2 more sources
Estimates for an integral in Lp norm of the (n+1)-th derivative of its integrand [PDF]
, 2000 Basing on Taylor’s formula with an integral remaider, an integral is estimated in Lp norm of the (n + 1)-th derivative of its integrand, and the Iyengar’s inequality and many other useful inequalities are ...
Guo, Bai-Ni, Qi, Feng
core
Percutaneous Repair or Medical Treatment for Secondary Mitral Regurgitation
New England Journal of Medicine, 2018 BACKGROUND In patients who have chronic heart failure with reduced left ventricular ejection fraction, severe secondary mitral‐valve regurgitation is associated with a poor prognosis. Whether percutaneous mitral‐valve repair improves clinical outcomes in
J. Obadia +29 more
semanticscholar +1 more source