Results 1 to 10 of about 1,048 (72)

Detection of arbitrage opportunities in multi-asset derivatives markets

open access: yesDependence Modeling, 2021
We are interested in the existence of equivalent martingale measures and the detection of arbitrage opportunities in markets where several multi-asset derivatives are traded simultaneously.
Papapantoleon Antonis   +1 more
doaj   +1 more source

Dilation Type Inequalities for Strongly-Convex Sets in Weighted Riemannian Manifolds

open access: yesAnalysis and Geometry in Metric Spaces, 2021
In this paper, we consider a dilation type inequality on a weighted Riemannian manifold, which is classically known as Borell’s lemma in high-dimensional convex geometry.
Tsuji Hiroshi
doaj   +1 more source

Dispersive order comparisons on extreme order statistics from homogeneous dependent random vectors

open access: yesDependence Modeling, 2021
In this paper, we investigate sufficient conditions for preservation property of the dispersive order for the smallest and largest order statistics of homogeneous dependent random vectors.
Mesfioui Mhamed, Trufin Julien
doaj   +1 more source

Varma Quantile Entropy Order

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
We give a stochastic order for Varma residual entropy and study several properties of it, like closure, reversed closure and preservation of this order in some stochastic models.
Sfetcu Sorina-Cezarina
doaj   +1 more source

On the symmetrized s-divergence

open access: yesOpen Mathematics, 2020
In this study, we work with the relative divergence of type s,s∈ℝs,s\in {\mathbb{R}}, which includes the Kullback-Leibler divergence and the Hellinger and χ 2 distances as particular cases.
Simić Slavko   +2 more
doaj   +1 more source

Complete consistency for the estimator of nonparametric regression model based on m-END errors

open access: yesOpen Mathematics, 2021
In this paper, we study the complete consistency for the estimator of nonparametric regression model based on m-END errors and obtain the convergence rates of the complete consistency under more general conditions.
Zhang Shui-Li, Hou Tiantian, Qu Cong
doaj   +1 more source

Three candidate plurality is stablest for small correlations

open access: yesForum of Mathematics, Sigma, 2021
Using the calculus of variations, we prove the following structure theorem for noise-stable partitions: a partition of n-dimensional Euclidean space into m disjoint sets of fixed Gaussian volumes that maximise their noise stability must be $(m-1 ...
Steven Heilman, Alex Tarter
doaj   +1 more source

A Stochastic Gronwall Lemma [PDF]

open access: yes, 2013
We prove a stochastic Gronwall lemma of the following type: if $Z$ is an adapted nonnegative continuous process which satisfies a linear integral inequality with an added continuous local martingale $M$ and a process $H$ on the right hand side, then for ...
Scheutzow, Michael
core   +1 more source

Relations between ageing and dependence for exchangeable lifetimes with an extension for the IFRA/DFRA property

open access: yesDependence Modeling, 2020
We first review an approach that had been developed in the past years to introduce concepts of “bivariate ageing” for exchangeable lifetimes and to analyze mutual relations among stochastic dependence, univariate ageing, and bivariate ageing.
Nappo Giovanna, Spizzichino Fabio
doaj   +1 more source

Sklar’s theorem, copula products, and ordering results in factor models

open access: yesDependence Modeling, 2021
We consider a completely specified factor model for a risk vector X = (X1, . . ., Xd), where the joint distributions of the components of X with a risk factor Z and the conditional distributions of X given Z are specified.
Ansari Jonathan, Rüschendorf Ludger
doaj   +1 more source

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