Results 21 to 30 of about 1,239,268 (312)

Symmetric Stable Processes in Cones [PDF]

open access: yesPotential Analysis, 2004
The main result identifies those \(p > 0\) for which \(E_ {x} \tau _ {\Gamma }^ {p} < \infty \). \(\tau _ {\Gamma }\) denotes the first exit time, from a generalized cone \(\Gamma \), of a \(\alpha\)-stable rotation invariant Lévy process \(X_ t\) in \({\mathbb R}^ d\).
Bañuelos, Rodrigo, Bogdan, Krzysztof
openaire   +2 more sources

The stable processes on symmetric matrices

open access: yesArab Journal of Mathematical Sciences, 2018
This paper deals with a characterization of the stable processes on the space of symmetric matrices by means of its Laplace transform. This characterization is done using a mixture with the Wishart distribution and under some independence properties ...
Farouk Mselmi
doaj   +1 more source

Hydrochemical Property and Hydrogen and Oxygen Isotopes in the Bayin River Basin

open access: yesGuan'gai paishui xuebao, 2022
【Objective】 The Bayin river basin is located in Qinghai province; the physical and chemical properties of its water vary with many factors. In this paper, we analyze the hydro-chemical properties and hydrogen and oxygen isotopes in different reaches of ...
ZHAI Jingya, JIN Yanxiang, JIN Xin
doaj   +1 more source

Trace estimates for stable processes [PDF]

open access: yesProbability Theory and Related Fields, 2007
In this paper we study the behaviour in time of the trace (the partition function) of the heat semigroup associated with symmetric stable processes in domains of $\Rd$. In particular, we show that for domains with the so called {\it{$R$-smoothness}} property the second terms in the asymptotic as $t\to 0$ involves the surface area of the domain, just as
Bañuelos, Rodrigo, Kulczycki, Tadeusz
openaire   +2 more sources

On stochastic differential equations driven by skew stable processes

open access: yesLietuvos Matematikos Rinkinys, 2001
There is not abstract.
Henrikas Pragarauskas
doaj   +3 more sources

Domains of Quasi Attraction: Why Stable Processes Are Observed in Reality?

open access: yesFractal and Fractional, 2023
From the very start of modelling with power-tail distributions, concerns were expressed about the actual applicability of distributions with infinite expectations to real-world distributions, which usually have bounded ranges.
Vassili N. Kolokoltsov
doaj   +1 more source

Uniqueness of stable processes with drift [PDF]

open access: yesProceedings of the American Mathematical Society, 2015
Suppose that $d\geq1$ and $α\in (1, 2)$. Let $Y$ be a rotationally symmetric $α$-stable process on $\R^d$ and $b$ a $\R^d$-valued measurable function on $\R^d$ belonging to a certain Kato class of $Y$. We show that $\rd X^b_t=\rd Y_t+b(X^b_t)\rd t$ with $X^b_0=x$ has a unique weak solution for every $x\in \R^d$. Let $\sL^b=-(-Δ)^{α/2} + b \cdot \nabla$,
Chen, Zhen-Qing, Wang, Longmin
openaire   +3 more sources

Estimation of Additive Error in Mixed Spectra for Stable Processes

open access: yesStatistica, 2017
Consider a symmetric α stable process having a spectral representation with an additive constant error. An estimator of that error and its rate of convergence are given.
Rachid Sabre
doaj   +1 more source

Real stationary Gaussian processes with stable correlation functions

open access: yesНауковий вісник Ужгородського університету. Серія: Математика і інформатика, 2017
The paper deals with real stationary processes with a stable correlation function, with the distribution of some functionalities from these processes and some of their properties.
Ю. В. Козаченко   +1 more
doaj   +1 more source

Stable distributions in fragmentation processes [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 1996
We introduce three models of fragmentation in which the largest fragment in the system can be broken at each time step with a fixed probability, p. We solve these models exactly in the long time limit to reveal stable time invariant (scaling) solutions which depend on p and the precise details of the fragmentation process.
Rodgers, GJ, Hassan, MK
openaire   +3 more sources

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