Results 21 to 30 of about 285,483 (304)
On the Total Positivity and Accurate Computations of r-Bell Polynomial Bases
A new class of matrices defined in terms of r-Stirling numbers is introduced. These r-Stirling matrices are totally positive and determine the linear transformation between monomial and r-Bell polynomial bases.
Esmeralda Mainar +2 more
doaj +1 more source
The Cambanis family of bivariate distributions: Properties and applications
The Cambanis family of bivariate distributions was introduced as a generalization of the Farlie-Gumbel-Morgenstern system. The present work is an attempt to investigate the distributional characteristics and applications of the family.
N. Unnikrishnan Nair +2 more
doaj +1 more source
Total positivity order and the normal distribution
International audienceUnlike the usual stochastic order, total positivity order is closed under conditioning. Here we provide a general formulation of the preservation properties of the order under conditioning; we study certain properties of the order ...
Marco Scarsini +3 more
core +2 more sources
Exploring the total positivity of yields correlations [PDF]
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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Large N analytical functional bootstrap. Part I. 1D CFTs and total positivity
We initiate the analytical functional bootstrap study of conformal field theories with large N limits. In this first paper we particularly focus on the 1D O(N) vector bootstrap.
Zhijin Li
doaj +1 more source
Weak Dependence Notions and Their Mutual Relationships
New weak notions of positive dependence between the components X and Y of a random pair (X,Y) have been considered in recent papers that deal with the effects of dependence on conditional residual lifetimes and conditional inactivity times.
Jorge Navarro +2 more
doaj +1 more source
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
doaj +1 more source
THE TOTAL DISTANCE FOR TOTALLY POSITIVE ALGEBRAIC INTEGERS [PDF]
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 $\alpha _1, \ldots, \alpha _d$.
openaire +1 more source
Q-system Cluster Algebras, Paths and Total Positivity
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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