Results 1 to 10 of about 1,180 (109)

Asymptotics of Karhunen–Loève Eigenvalues for Sub-Fractional Brownian Motion and Its Application

open access: yesFractal and Fractional, 2021
In the present paper, the Karhunen–Loève eigenvalues for a sub-fractional Brownian motion are considered. Rigorous large n asymptotics for those eigenvalues are shown, based on the functional analysis method.
Chun-Hao Cai, Jun-Qi Hu, Ying-Li Wang
doaj   +3 more sources

Hilfer-Katugampola fractional stochastic differential inclusions with Clarke sub-differential [PDF]

open access: yesHeliyon
The objective of this paper is to investigate the existence of mild solutions and optimal controls for a class of stochastic Hilfer-Katugampola fractional differential inclusions (SHKFDIs) with non-instantaneous impulsive (NIIs) that is strengthened by ...
Noorah Mshary   +3 more
doaj   +2 more sources

Generative inpainting of incomplete Euclidean distance matrices of trajectories generated by a fractional Brownian motion [PDF]

open access: yesScientific Reports
Fractional Brownian motion (fBm) exhibits both randomness and strong scale-free correlations, posing a challenge for generative artificial intelligence to replicate the underlying stochastic process.
Alexander Lobashev   +2 more
doaj   +2 more sources

Parametric Estimation in the Vasicek-Type Model Driven by Sub-Fractional Brownian Motion

open access: yesAlgorithms, 2018
In the paper, we tackle the least squares estimators of the Vasicek-type model driven by sub-fractional Brownian motion: d X t = ( μ + θ X t ) d t + d S t H , t ≥ 0 with X 0 = 0 , where S H is a sub-fractional Brownian ...
Shengfeng Li, Yi Dong
doaj   +3 more sources

Estimating endogenous treatments effects under long-range dependency without untreated controls. [PDF]

open access: yesPLoS ONE
The identification and estimation of social policy effects through time‑series natural experiments is fundamental in modern econometrics. However, challenges come from the heterogeneities caused by staggered treatment adoptions and the endogeneities ...
Shiming Hao
doaj   +2 more sources

ON THE QHASI CLASS AND ITS EXTENSION TO SOME GAUSSIAN SHEETS

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2022
Introduced in 2018 the generalized bifractional Brownian motion is considered as an element of the quasi-helix with approximately stationary increment class of real centered Gaussian processes conditioning by parameters.
Charles El-Nouty, Darya Filatova
doaj   +1 more source

European Option Pricing under Sub-Fractional Brownian Motion Regime in Discrete Time

open access: yesFractal and Fractional, 2023
In this paper, the approximate stationarity of the second-order moment increments of the sub-fractional Brownian motion is given. Based on this, the pricing model for European options under the sub-fractional Brownian regime in discrete time is ...
Zhidong Guo, Yang Liu, Linsong Dai
doaj   +1 more source

Slices of the Anomalous Phase Cube Depict Regions of Sub- and Super-Diffusion in the Fractional Diffusion Equation

open access: yesMathematics, 2021
Fractional-order time and space derivatives are one way to augment the classical diffusion equation so that it accounts for the non-Gaussian processes often observed in heterogeneous materials.
Richard L. Magin, Ervin K. Lenzi
doaj   +1 more source

Brownian motion effects on analytical solutions of a fractional-space long–short-wave interaction with conformable derivative

open access: yesResults in Physics, 2022
In this article, we consider the stochastic fractional-space long–short-wave interaction system (SFS-LSWIs) forced by multiplicative Brownian motion. To obtain a new exact stochastic fractional-space solutions, we apply two different methods such as sin ...
Wael W. Mohammed   +6 more
doaj   +1 more source

Impacts of Brownian motion and fractional derivative on the solutions of the stochastic fractional Davey-Stewartson equations

open access: yesDemonstratio Mathematica, 2023
In this article, the stochastic fractional Davey-Stewartson equations (SFDSEs) that result from multiplicative Brownian motion in the Stratonovich sense are discussed.
Mohammed Wael W.   +2 more
doaj   +1 more source

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