Results 31 to 40 of about 4,762,198 (315)

Portfolio optimization based on jump-diffusion stochastic differential equation

open access: yesAlexandria Engineering Journal, 2020
In order to better link the stochastic diffusion stochastic differential equation with securities investment, this paper proposes a securities portfolio optimization method of the stochastic diffusion stochastic differential equation.
Yiling Huang
doaj   +1 more source

Similarity Solution for Fractional Diffusion Equation

open access: yesAbstract and Applied Analysis, 2014
Fractional diffusion equation in fractal media is an integropartial differential equation parametrized by fractal Hausdorff dimension and anomalous diffusion exponent.
Jun-Sheng Duan, Ai-Ping Guo, Wen-Zai Yun
doaj   +1 more source

Reproducing curvature effects due to differential diffusion in tabulated chemistry for premixed flames

open access: yesProceedings of the Combustion Institute, 2019
Tabulated chemistry reduces the cost of modeling reacting flows by transporting fewer scalars. It also has the benefit of introducing fewer terms that must be closed for Reynolds-averaged Navier-Stokes and large eddy simulation modeling. In this study of
Jason Schlup, G. Blanquart
semanticscholar   +1 more source

Stochastic differential equation for Brox diffusion

open access: yesStochastic Processes and their Applications, 2017
This paper studies the weak and strong solutions to the stochastic differential equation $ dX(t)=-\frac12 \dot W(X(t))dt+d\mathcal{B}(t)$, where $(\mathcal{B}(t), t\ge 0)$ is a standard Brownian motion and $W(x)$ is a two sided Brownian motion, independent of $\mathcal{B}$.
Yaozhong Hu, Khoa Lê, Leonid Mytnik
openaire   +3 more sources

Evaluation of hydrogen/ammonia substitute fuel mixtures for methane: Effect of differential diffusion

open access: yesInternational journal of hydrogen energy
One strategy for utilizing ammonia as an energy vector is to replace conventional hydrocarbons with hydrogen-enriched ammonia in existing or retrofitted combustors. However, the strong differential diffusion effect of hydrogen can significantly alter the
Xinyi Chen   +6 more
semanticscholar   +1 more source

Similarity solutions of Reaction-Diffusion equation with space- and time-dependent diffusion and reaction terms

open access: yes, 2015
We consider solvability of the generalized reaction-diffusion equation with both space- and time-dependent diffusion and reaction terms by means of the similarity method.
Ho, C. -L., Lee, C. -C.
core   +1 more source

Stability Analysis for Impulsive Stochastic Reaction-Diffusion Differential System and Its Application to Neural Networks

open access: yesJournal of Applied Mathematics, 2013
This paper is concerned with the stability of impulsive stochastic reaction-diffusion differential systems with mixed time delays. First, an equivalent relation between the solution of a stochastic reaction-diffusion differential system with time delays ...
Yanke Du, Yanlu Li, Rui Xu
doaj   +1 more source

Differential diffusion modelling for LES of premixed and partially premixed flames with presumed FDF

open access: yesCombustion theory and modelling
Large eddy simulations (LES) with flamelet and presumed filtered density function closure are used to simulate turbulent premixed and partially premixed hydrogen flames.
Gioele Ferrante   +2 more
semanticscholar   +1 more source

PDEs in Moving Time Dependent Domains

open access: yes, 2013
In this work we study partial differential equations defined in a domain that moves in time according to the flow of a given ordinary differential equation, starting out of a given initial domain.
AJ Chorin   +5 more
core   +2 more sources

Analytical approximation solution of a mathematical modeling of reaction-diffusion brusselator system by reduced differential transform method [PDF]

open access: yesJournal of Hyperstructures, 2014
In this paper an approximate analytical solution of a mathematical modeling of reaction-diffusion Brusselator system with fractional time derivative will be obtained with the help of the reduced differential transform method. Fractional reactiondiffusion
A. Taghavi, A. Babaei, A. Mohammadpour
doaj   +1 more source

Home - About - Disclaimer - Privacy