Results 11 to 20 of about 2,603 (123)

The geometry of the space of branched rough paths

open access: yesProceedings of the London Mathematical Society, Volume 121, Issue 2, Page 220-251, August 2020., 2020
Abstract We construct an explicit transitive free action of a Banach space of Hölder functions on the space of branched rough paths, which yields in particular a bijection between these two spaces. This endows the space of branched rough paths with the structure of a principal homogeneous space over a Banach space and allows to characterize its ...
Nikolas Tapia, Lorenzo Zambotti
wiley   +1 more source

Quasi‐shuffle algebras and renormalisation of rough differential equations

open access: yesBulletin of the London Mathematical Society, Volume 52, Issue 1, Page 43-63, February 2020., 2020
Abstract The objective of this work is to compare several approaches to the process of renormalisation in the context of rough differential equations using the substitution bialgebra on rooted trees known from backward error analysis of B‐series. For this purpose, we present a so‐called arborification of the Hoffman–Ihara theory of quasi‐shuffle ...
Yvain Bruned   +2 more
wiley   +1 more source

A Stochastic Gronwall Lemma [PDF]

open access: yes, 2013
We prove a stochastic Gronwall lemma of the following type: if $Z$ is an adapted nonnegative continuous process which satisfies a linear integral inequality with an added continuous local martingale $M$ and a process $H$ on the right hand side, then for ...
Scheutzow, Michael
core   +1 more source

Fractional Fokker-Planck-Kolmogorov type Equations and their Associated Stochastic Differential Equations [PDF]

open access: yes, 2011
MSC 2010: 26A33, 35R11, 35R60, 35Q84, 60H10 Dedicated to 80-th anniversary of Professor Rudolf GorenfloThere is a well-known relationship between the Itô stochastic differential equations (SDEs) and the associated partial differential equations called ...
Hahn, Marjorie, Umarov, Sabir
core   +1 more source

Predictability and uniqueness of weak solutions of the stochastic differential equations

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
Causality is a topic which receives much attention nowadays and it represents a prediction property in the context of possible reduction of available information in order to predict a given filtration.
Merkle Ana
doaj   +1 more source

The stability with general decay rate of hybrid stochastic fractional differential equations driven by Lévy noise with impulsive effects

open access: yesOpen Mathematics, 2022
In this paper, our aims are to study the stability with general decay rate of hybrid stochastic fractional differential equations driven by Lévy noise with impulsive effects.
Hou Tingting, Zhang Hui
doaj   +1 more source

Construction of analytical solutions to systems of two stochastic differential equations

open access: yesOpen Mathematics, 2023
A scheme for the stochastization of systems of ordinary differential equations (ODEs) based on Itô calculus is presented in this article. Using the presented techniques, a system of stochastic differential equations (SDEs) can be constructed in such a ...
Navickas Zenonas   +4 more
doaj   +1 more source

Exact solutions of the stochastic new coupled Konno-Oono equation

open access: yesResults in Physics, 2021
In this paper we consider the stochastic Konno-Oono equation, which is forced by multiplicative noise. In order to find exact solutions of stochastic nonlinear Konno-Oono equations, generalized G′G-expansion method are implemented.
Wael W. Mohammed   +3 more
doaj   +1 more source

An uniqueness result for a class of wiener-space valued stochastic differential equations [PDF]

open access: yes, 1999
Mathematics Subject Classifications (1991): 58D25; 60H07; 60H10; 60J60.We prove a generalization of Bismut-Itô-Kunita formula to infinite dimensions and derive an uniqueness result for Wiener space valued processes which holds for a special class of ...
Oliveira, Maria João
core   +1 more source

A Model for Liver Homeostasis Using Modified Mean‐Reverting Ornstein–Uhlenbeck Process

open access: yesComputational and Mathematical Methods in Medicine, Volume 11, Issue 1, Page 27-47, 2010., 2010
Short of a liver biopsy, hepatic disease and drug‐induced liver injury are diagnosed and classified from clinical findings, especially laboratory results. It was hypothesized that a healthy hepatic dynamic equilibrium might be modelled by an Ornstein–Uhlenbeck (OU) stochastic process, which might lead to more sensitive and specific diagnostic criteria.
D. C. Trost   +4 more
wiley   +1 more source

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