Results 1 to 10 of about 1,719,049 (133)

Models with hidden regular variation: Generation and detection

open access: yesStochastic Systems, 2015
We review the notions of multivariate regular variation (MRV) and hidden regular variation (HRV) for distributions of random vectors and then discuss methods for generating models exhibiting both properties concentrating on the non-negative orthant in ...
Bikramjit Das, Sidney Ira Resnick
doaj   +5 more sources

A Seneta's Conjecture and the Williamson Transform [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2023
Considering slowly varying functions (SVF), %Seneta (2019) Seneta in 2019 conjectured the following implication, for $\alpha\geq1$,$$\int_0^x y^{\alpha-1}(1-F(y))dy\textrm{\ is SVF}\ \Rightarrow\ \int_{0}^x y^{\alpha}dF(y)\textrm{\ is SVF, as $x\to\infty$
Edward Omey, Meitner Cadena
doaj   +1 more source

Truncated Moments for Heavy-Tailed and Related Distribution Classes

open access: yesMathematics, 2023
Suppose that ξ+ is the positive part of a random variable defined on the probability space (Ω,F,P) with the distribution function Fξ. When the moment Eξ+p of order p>0 is finite, then the truncated moment F¯ξ,p(x)=min1,Eξp1I{ξ>x}, defined for all x⩾0, is
Saulius Paukštys   +2 more
doaj   +1 more source

On regular variation of entire Dirichlet series

open access: yesМатематичні Студії, 2023
Consider an entire (absolutely convergent in $\mathbb{C}$) Dirichlet series $F$ with the exponents $\lambda_n$, i.e., of the form $F(s)=\sum_{n=0}^\infty a_ne^{s\lambda_n}$, and, for all $\sigma\in\mathbb{R}$, put $\mu(\sigma,F)=\max\{|a_n|e^{\sigma ...
P. V. Filevych, O. B. Hrybel
doaj   +1 more source

Polynomial tails of additive-type recursions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
Polynomial bounds and tail estimates are derived for additive random recursive sequences, which typically arise as functionals of recursive structures, of random trees, or in recursive algorithms.
Eva-Maria Schopp
doaj   +1 more source

Even Order Half-Linear Differential Equations with Regularly Varying Coefficients

open access: yesMathematics, 2020
We establish nonoscillation criterion for the even order half-linear differential equation (−1)nfn(t)Φx(n)(n)+∑l=1n(−1)n−lβn−lfn−l(t)Φx(n−l)(n−l)=0, where β0,β1,…,βn−1 are real numbers, n∈N, Φ(s)=sp−1sgns for s∈R, p∈(1,∞) and fn−l is a regularly varying (
Vojtěch Růžička
doaj   +1 more source

Half-linear differential equations: Regular variation, principal solutions, and asymptotic classes

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
We are interested in the structure of the solution space of second-order half-linear differential equations taking into account various classifications regarding asymptotics of solutions.
Pavel Řehák
doaj   +1 more source

General inverse problems for regular variation [PDF]

open access: yes, 2013
Regular variation of distributional tails is known to be preserved by various linear transformations of some random structures. An inverse problem for regular variation aims at understanding whether the regular variation of a transformed random object is
Damek, Ewa   +3 more
core   +3 more sources

Cauchy's functional equation and extensions: Goldie's equation and inequality, the Go{\l}\k{a}b-Schinzel equation and Beurling's equation [PDF]

open access: yes, 2014
The Cauchy functional equation is not only the most important single functional equation, it is also central to regular variation. Classical Karamata regular variation involves a functional equation and inequality due to Goldie; we study this, and its ...
Bingham, N. H., Ostaszewski, A. J.
core   +2 more sources

Second order corrections for the limits of normalized ruin times in the presence of heavy tails

open access: yesStochastic Systems, 2014
In this paper we consider a compound Poisson risk model with regularly varying claim sizes. For this model in [4] an asymptotic formula for the finite time ruin probability is provided when the time is scaled by the mean excess function. In this paper
Dominik Kortschak, Søren Asmussen
doaj   +1 more source

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