Results 31 to 40 of about 6,919,485 (295)
Dependence by Total Positivity
The Annals of Probability, 1985 For a review see the following entry, Zbl 0621.62054.
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THE TOTAL DISTANCE FOR TOTALLY POSITIVE ALGEBRAIC INTEGERS [PDF]
Bulletin of the Australian Mathematical Society, 2014 AbstractLet $\def \xmlpi #1{}\def \mathsfbi #1{\boldsymbol {\mathsf {#1}}}\let \le =\leqslant \let \leq =\leqslant \let \ge =\geqslant \let \geq =\geqslant \def \Pr {\mathit {Pr}}\def \Fr {\mathit {Fr}}\def \Rey {\mathit {Re}}P(x)$ be a polynomial of degree $d$ with zeros $\alpha _1, \ldots, \alpha _d$.
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Q-system Cluster Algebras, Paths and Total Positivity
Symmetry, Integrability and Geometry: Methods and Applications, 2010 In the first part of this paper, we provide a concise review of our method of solution of the A_r Q-systems in terms of the partition function of paths on a weighted graph. In the second part, we show that it is possible to modify the graphs and transfer
Philippe Di Francesco, Rinat Kedem
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PLoS ONE, 2021 IntroductionOpen Doors, an HIV prevention project targeting key populations in Zambia, recorded low HIV positivity rates (9%) among HIV testing clients, compared to national adult prevalence (12.3%), suggesting case finding efficiency could be improved ...
Joseph Kamanga +9 more
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Exploring the total positivity of yields correlations [PDF]
, 2016 We test the plausibility of the total positivity assumption of interest rates changes recently introduced in order to justify the presence of shift, slope and curvature for yield curves. To this aim, we introduce and discuss a test of total positivity of
GOIA, Aldo, SALINELLI, Ernesto
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MathematicsGeneralized order statistics (GOSs) are often adopted as a tool for providing a unified approach to several stochastic models dealing with ordered random variables. In this contribution, we first recall various useful results based on the notion of total
Maryam Esna-Ashari +3 more
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Epidemiological characteristics of four common respiratory viral infections in children
Virology Journal, 2021 Background Viruses are the main infectious agents of acute respiratory infections in children. We aim to describe the epidemiological characteristics of viral pathogens of acute respiratory tract infections in outpatient children. Methods From April 2018
Guohong Zhu +6 more
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Combinatorics and total positivity
Journal of Combinatorial Theory, Series A, 1995 An infinite real matrix \(M\) is said to be totally positive (TP) if every minor of \(M\) has nonnegative determinant. The purpose of the article is to show that many familiar matrices arising in combinatorics and the theory of symmetrical functions have this property.
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Total positivity of Narayana matrices [PDF]
Discrete Mathematics, 2018 We prove the total positivity of the Narayana triangles of type $A$ and type $B$, and thus affirmatively confirm a conjecture of Chen, Liang and Wang and a conjecture of Pan and Zeng. We also prove the strict total positivity of the Narayana squares of type $A$ and type $B$.
Yi Wang 0027, Arthur L. B. Yang
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Total positivity of Hadamard products [PDF]
, 1992 The Hadamard product of two totally positive Toeplitz matrices M and N need not be totally positive. When only finitely many diagonals of M and of N are non-zero, preservation of total positivity by Hadamard product is essentially a theorem of Maló. Here
Wagner, David G, David G Wagner
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