Results 31 to 40 of about 74,210 (205)

Computer simulation study of the Levy flight process [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2009
14 pages, 7 ...
Ghaemi, Mehrdad   +2 more
openaire   +2 more sources

Investments with declining cost following a Levy process

open access: yes, 2023
We consider an optimal investment problem in which the cost of the investment decreases over time. This decrease is modelled using the negative of a non-decreasing Levy process.
Armerin, Fredrik,
core   +1 more source

Investigating Levy's model in financial series prediction(case of vanilla option) [PDF]

open access: yesMathematics and Modeling in Finance
In recent years, there has been growing interest in the application of stochastic processes to model financial markets, particularly in the pricing and prediction of derivative instruments such as options. One of the more advanced models that has emerged
Seyed Jalal Tabatabaei
doaj   +1 more source

Levy Measure Decompositions for the Beta and Gamma Processes [PDF]

open access: yesCoRR, 2012
We develop new representations for the Levy measures of the beta and gamma processes. These representations are manifested in terms of an infinite sum of well-behaved (proper) beta and gamma distributions. Further, we demonstrate how these infinite sums may be truncated in practice, and explicitly characterize truncation errors.
Yingjian Wang 0004, Lawrence Carin
openaire   +2 more sources

Continuous-time random walks and Lévy walks with stochastic resetting

open access: yesPhysical Review Research, 2020
Intermittent stochastic processes appear in a wide field, such as chemistry, biology, ecology, and computer science. This paper builds up the theory of intermittent continuous-time random walk (CTRW) and Lévy walk, in which the particles are ...
Tian Zhou, Pengbo Xu, Weihua Deng
doaj   +1 more source

On a Levy process pinned at random time

open access: yes, 2021
In this paper, our first goal is to rigorously define a Levy process pinned at random time. Our second task is to establish the Markov property with respect to its completed natural filtration and thus with respect to the usual augmentation of the latter.
Erraoui, Mohamed,   +2 more
core   +1 more source

Continuous Time Autoregressive Moving Average Processes Driven by Semi-Levy Process

open access: yesپژوهش‌های ریاضی, 2020
Introduction A flexible and tractable class of linear models is Autoregressive moving average (ARMA) process that are in effect of discrete noises.  The continuous time ARMA (CARMA) processes have wide applications in many data modeling where are more ...
Navideh Modarresi   +2 more
doaj  

Transportation distance between the Lévy measures and stochastic equations for Lévy-type processes

open access: yesModern Stochastics: Theory and Applications, 2014
The notion of the transportation distance on the set of the Lévy measures on $\mathbb{R}$ is introduced. A Lévy-type process with a given symbol (state dependent analogue of the characteristic triplet) is proved to be well defined as a strong solution to
T. Kosenkova, A. Kulik
doaj   +1 more source

Option Pricing under a Generalized Black–Scholes Model with Stochastic Interest Rates, Stochastic Strings, and Lévy Jumps

open access: yesMathematics, 2023
We introduce a novel option pricing model that features stochastic interest rates along with an underlying price process driven by stochastic string shocks combined with pure jump Lévy processes.
Alberto Bueno-Guerrero, Steven P. Clark
doaj   +1 more source

Approximation of the Levy-Feller advection-dispersion process by random walk and finite difference method

open access: yes, 2007
In this paper we present a random walk model for approximating a Levy Feller advection-dispersion process, governed by the Levy-Feller advection-dispersion differential equation (LFADE).
Anh,V   +12 more
core   +1 more source

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