Results 31 to 40 of about 6,032 (69)

The Normal Cross Numerical Method Used to Solve the Anisotropic Diffusion Problem

open access: yesJournal of Harbin University of Science and Technology, 2020
In order to solve the two dimensional anisotropic diffusion problem, an efficient normal crossing numerical method was proposed. The program was written in FORTRAN language to realize numerical calculation.
LIU Xiaogang   +4 more
doaj   +1 more source

Similarity Solutions to Nonlinear Diffusion/Harry Dym Fractional Equations

open access: yesAdvances in Mathematical Physics, 2021
By using scalar similarity transformation, nonlinear model of time-fractional diffusion/Harry Dym equation is transformed to corresponding ordinary fractional differential equations, from which a travelling-wave similarity solution of time-fractional ...
Chao Yue   +3 more
doaj   +1 more source

Low-Complexity Numerical Approach for the Diffusion Equation with Variable Diffusion Coefficient

open access: yesMathematics
The diffusion equation models a wide variety of physical and chemical processes and has significant interest in many scientific disciplines. Analytical and numerical methods found in the literature for solving the diffusion equation consider a constant ...
Marta Zárraga-Rodríguez   +2 more
doaj   +1 more source

Econophysics and Fractional Calculus: Einstein’s Evolution Equation, the Fractal Market Hypothesis, Trend Analysis and Future Price Prediction

open access: yesMathematics, 2019
This paper examines a range of results that can be derived from Einstein’s evolution equation focusing on the effect of introducing a Lévy distribution into the evolution equation.
Jonathan Blackledge   +4 more
doaj   +1 more source

Information Potential Fields Navigation in Wireless Ad-Hoc Sensor Networks

open access: yesSensors, 2011
As wireless sensor networks (WSNs) are increasingly being deployed in some important applications, it becomes imperative that we consider application requirements in in-network processes.
Yong Qi, Wei Wei
doaj   +1 more source

Impulsive Diffusion Equation on Time Scales

open access: yesInternational Journal of Analysis and Applications, 2018
Application of boundary value problems (BVP’s) on an arbitrary time scale T is a fairly new and important subject in mathematics. In this study, we deal with an eigenvalue problem for impulsive diffusion equation with boundary conditions on T.
Tuba Gulsen   +3 more
doaj   +2 more sources

Higher-order approximations for space-fractional diffusion equation

open access: yesJournal of Numerical Analysis and Approximation Theory
Second-order and third-order finite difference approximations for fractional derivatives are derived from a recently proposed unified explicit form. The Crank-Nicholson schemes based on these approximations are applied to discretize the space-fractional
Anura Gunarathna Wickramarachchi   +1 more
doaj   +1 more source

Mathematical Modeling of Release Kinetics from Supramolecular Drug Delivery Systems

open access: yesPharmaceutics, 2019
Embedding of active substances in supramolecular systems has as the main goal to ensure the controlled release of the active ingredients. Whatever the final architecture or entrapment mechanism, modeling of release is challenging due to the moving ...
Constantin Mircioiu   +8 more
doaj   +1 more source

Time Fractional Fisher–KPP and Fitzhugh–Nagumo Equations

open access: yesEntropy, 2020
A standard reaction–diffusion equation consists of two additive terms, a diffusion term and a reaction rate term. The latter term is obtained directly from a reaction rate equation which is itself derived from known reaction kinetics, together with ...
Christopher N. Angstmann, Bruce I. Henry
doaj   +1 more source

Bitsadze-Samarskii Type Problem for the Diffusion Equation and Degenerate Hyperbolic Equation

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki
A boundary value problem of the Bitsadze-Samarskii type is studied in the article for a fractionalorder diffusion equation and a degenerate hyperbolic equation with singular coefficients at lower terms in an unbounded domain.
Ruziev, M.Kh.   +3 more
doaj   +1 more source

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