Results 31 to 40 of about 202,312 (273)

重分数布朗运动的列维连续模(Lévy's moduli of continuity of multifractional Brownian motion)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2000
This paper proposed Lévy's moduli of continuity of multifractional Brownian motion,which is a generalization of the fractional Brownian motion.
LINZheng-yan(林正炎)
doaj   +1 more source

Pricing European Options under a Fuzzy Mixed Weighted Fractional Brownian Motion Model with Jumps

open access: yesFractal and Fractional, 2023
This study investigates the pricing formula for European options when the underlying asset follows a fuzzy mixed weighted fractional Brownian motion within a jump environment.
Feng Xu, Xiao-Jun Yang
doaj   +1 more source

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

Limiting Behaviors for Brownian Motion Reflected on Brownian Motion [PDF]

open access: yesMethods and Applications of Analysis, 2002
The authors study a law of iterated logarithm associated to a Brownian motion reflected to another independent Brownian motion.
Chen, X., Li, Wenbo
openaire   +3 more sources

Exact distributions of the maximum and range of random diffusivity processes

open access: yesNew Journal of Physics, 2021
We study the extremal properties of a stochastic process x _t defined by the Langevin equation ${\dot {x}}_{t}=\sqrt{2{D}_{t}}\enspace {\xi }_{t}$ , in which ξ _t is a Gaussian white noise with zero mean and D _t is a stochastic ‘diffusivity’, defined as
Denis S Grebenkov   +4 more
doaj   +1 more source

Convergence to Weighted Fractional Brownian Sheets [PDF]

open access: yes, 2008
We define weighted fractional Brownian sheets, which are a class of Gaussian random fields with four parameters that include fractional Brownian sheets as special cases, and we give some of their properties.
Garzón, Johanna
core   +3 more sources

On the Integral of the Fractional Brownian Motion and Some Pseudo-Fractional Gaussian Processes

open access: yesMathematics, 2019
We investigate the main statistical parameters of the integral over time of the fractional Brownian motion and of a kind of pseudo-fractional Gaussian process, obtained as a classical Gauss−Markov process from Doob representation by replacing ...
Mario Abundo, Enrica Pirozzi
doaj   +1 more source

Maximal Brownian motions

open access: yesAnnales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2009
Let $Z=(X,Y)$ be a planar Brownian motion, $\ZZ$ the filtration it generates, and $B$ a linear Brownian motion in the filtration $\ZZ$. One says that $B$ (or its filtration) is maximal if no other linear $\ZZ$-Brownian motion has a filtration strictly bigger than that of $B$.
Brossard, Jean   +2 more
openaire   +4 more sources

Hydrothermal analysis of magneto hydrodynamic nanofluid flow between two parallel by AGM

open access: yesCase Studies in Thermal Engineering, 2019
In this paper, heat and mass transfer process of steady nanofluid flow between two parallel plates is investigated in existence of uniform magnetic field.
R. Derakhshan   +4 more
doaj   +1 more source

Cluster Analysis on Locally Asymptotically Self-Similar Processes with Known Number of Clusters

open access: yesFractal and Fractional, 2022
We conduct cluster analysis of a class of locally asymptotically self-similar stochastic processes with finite covariance structures, which includes Brownian motion, fractional Brownian motion, and multifractional Brownian motion as paradigmatic examples.
Nan Rao, Qidi Peng, Ran Zhao
doaj   +1 more source

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