Results 41 to 50 of about 2,809 (150)

Existence, uniqueness and stability of the solution to neutral stochastic functional differential equations with infinite delay under non-Lipschitz conditions

open access: yesAdvances in Differential Equations, 2013
Choosing space Cg as the phase space, the existence, uniqueness and stability of the solution to neutral stochastic functional differential equations with infinite delay (short for INSFDEs) are studied in this paper.
Fengying Wei, Yuhua Cai
semanticscholar   +1 more source

Stochastic flows with interaction and measure‐valued processes

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 63, Page 3963-3977, 2003., 2003
We consider the new class of the Markov measure‐valued stochastic processes with constant mass. We give the construction of such processes with the family of the probabilities which describe the motion of single particles. We also consider examples related to stochastic flows with the interactions and the local times for such processes.
Andrey A. Dorogovtsev
wiley   +1 more source

A Delayed Black and Scholes Formula I [PDF]

open access: yes, 2006
In this article we develop an explicit formula for pricing European options when the underlying stock price follows a non-linear stochastic differential delay equation (sdde). We believe that the proposed model is sufficiently flexible to fit real market
Bachelier L.   +21 more
core   +5 more sources

On Copula-Itô processes

open access: yesDependence Modeling, 2019
We study the dynamics of the family of copulas {Ct}t≥0 of a pair of stochastic processes given by stochastic differential equations (SDE). We associate to it a parabolic partial differential equation (PDE). Having embedded the set of bivariate copulas in
Jaworski Piotr
doaj   +1 more source

Exploring Stochastic Fractional Delay Integrodifferential System

open access: yesAsia Pacific Journal of Mathematics
. This study examines the system of stochastic fractional delay integrodifferential equations with Gaussian noise. We employ the Picard-Lindelof successive approximation scheme for existence and uniqueness.
M. L. Maheswari, Karthik Muthusamy
semanticscholar   +1 more source

Functional integro‐differential stochastic evolution equations in Hilbert space

open access: yesInternational Journal of Stochastic Analysis, Volume 16, Issue 2, Page 141-161, 2003., 2003
We investigate a class of abstract functional integro‐differential stochastic evolution equations in a real separable Hilbert space. Global existence results concerning mild and periodic solutions are formulated under various growth and compactness conditions.
David N. Keck, Mark A. McKibben
wiley   +1 more source

Stability of the Stochastic θ-Method for Super-Linear Stochastic Differential Equations with Unbounded Delay

open access: yesJournal of Computational Mathematics, 2019
This paper deals with numerical stability properties of super-linear stochastic differential equations with unbounded delay. Sufficient conditions for mean square and almost sure decay stability of the above system and its stochastic θ-method ...
Lin Chen
semanticscholar   +1 more source

Calibration and simulation of Heston model

open access: yesOpen Mathematics, 2017
We calibrate Heston stochastic volatility model to real market data using several optimization techniques. We compare both global and local optimizers for different weights showing remarkable differences even for data (DAX options) from two consecutive ...
Mrázek Milan, Pospíšil Jan
doaj   +1 more source

Periodicity in distribution. I. Discrete systems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 30, Issue 2, Page 65-127, 2002., 2002
We consider the existence of periodic in distribution solutions to the difference equations in a Banach space. A random process is called periodic in distribution if all its finite‐dimensional distributions are periodic with respect to shift of time with one period. Only averaged characteristics of a periodic process are periodic functions.
A. Ya. Dorogovtsev
wiley   +1 more source

Approximations of center manifolds for delay stochastic differential equations with additive noise

open access: yesAdvances in Nonlinear Analysis, 2023
This article deals with approximations of center manifolds for delay stochastic differential equations with additive noise. We first prove the existence and smoothness of random center manifolds for these approximation equations. Then we show that the Ck{
Wu Longyu   +3 more
doaj   +1 more source

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