Results 21 to 30 of about 80,904 (151)

Lévy Processes Linked to the Lower-Incomplete Gamma Function

open access: yesFractal and Fractional, 2021
We start by defining a subordinator by means of the lower-incomplete gamma function. This can be considered as an approximation of the stable subordinator, easier to be handled in view of its finite activity.
Luisa Beghin, Costantino Ricciuti
doaj   +1 more source

A construction of continuous-time ARMA models by iterations of Ornstein-Uhlenbeck processes [PDF]

open access: yes, 2016
We present a construction of a family of continuous-time ARMA processes based on p iterations of the linear operator that maps a Lévy process onto an Ornstein-Uhlenbeck process. The construction resembles the procedure to build an AR(p) from an AR(1). We
Arratia Quesada, Argimiro Alejandro   +2 more
core   +9 more sources

The Lévy–Khintchine type operators with variable Lipschitz continuous coefficients generate linear or nonlinear Markov processes and semigroups [PDF]

open access: yes, 2011
Ito's construction of Markovian solutions to stochastic equations driven by a Lévy noise is extended to nonlinear distribution dependent integrands aiming at the effective construction of linear and nonlinear Markov semigroups and the corresponding ...
Kolokoltsov, V. N. (Vasiliĭ Nikitich)
core   +1 more source

Geometric approximations to transition densities of Jump-type Markov processes

open access: yesOpen Mathematics, 2021
This paper is concerned with the transition functions of symmetric Levy-type processes generated by a pseudo-differential operator with variable coefficients.
Zhuang Yuanying, Song Xiao
doaj   +1 more source

Logarithmic Lévy process directed by Poisson subordinator

open access: yesModern Stochastics: Theory and Applications, 2019
Let $\{L(t),t\ge 0\}$ be a Lévy process with representative random variable $L(1)$ defined by the infinitely divisible logarithmic series distribution. We study here the transition probability and Lévy measure of this process.
Penka Mayster, Assen Tchorbadjieff
doaj   +1 more source

New Method to Investigate the Impact of Independent Quadratic α-Stable Poisson Jumps on the Dynamics of a Disease under Vaccination Strategy

open access: yesFractal and Fractional, 2023
Long-run bifurcation analysis aims to describe the asymptotic behavior of a dynamical system. One of the main objectives of mathematical epidemiology is to determine the acute threshold between an infection’s persistence and its elimination.
Yassine Sabbar   +3 more
doaj   +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

Application of Lévy processes in modelling (geodetic) time series with mixed spectra [PDF]

open access: yesNonlinear Processes in Geophysics, 2021
Recently, various models have been developed, including the fractional Brownian motion (fBm), to analyse the stochastic properties of geodetic time series together with the estimated geophysical signals.
J.-P. Montillet   +5 more
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

Barrier Option Under Lévy Model : A PIDE and Mellin Transform Approach

open access: yesMathematics, 2016
We propose a stochastic model to develop a partial integro-differential equation (PIDE) for pricing and pricing expression for fixed type single Barrier options based on the Itô-Lévy calculus with the help of Mellin transform.
Sudip Ratan Chandra, Diganta Mukherjee
doaj   +1 more source

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