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  1. Virtual Element Method for Control Constrained Dirichlet Boundary Control Problem Governed by the Diffusion Problem

    This article develops a conforming virtual element method for a control-constrained Dirichlet boundary optimal control problem governed by the...

    Jai Tushar, Ramesh Chandra Sau, Anil Kumar in Journal of Scientific Computing
    Article 12 December 2023
  2. Fitted Difference Scheme on a Non-uniform Mesh for Singularly Perturbed Parabolic Reaction–Diffusion with Large Negative Shift and Non-local Boundary Condition

    In this paper, we study the numerical solution of singularly perturbed parabolic reaction–diffusion problems with large delay in space, and the right...

    Wakjira Tolassa Gobena, Gemechis File Duressa, Lakshmi Sireesha Challa in International Journal of Applied and Computational Mathematics
    Article 21 September 2023
  3. Rate of convergence for reaction–diffusion equations with nonlinear Neumann boundary conditions and \({\mathcal {C}}^1\) variation of the domain

    In this paper, we propose the compact convergence approach to deal with the continuity of attractors of some reaction–diffusion equations under...

    Marcone C. Pereira, Leonardo Pires in Journal of Evolution Equations
    Article 11 January 2024
  4. Accurate Boundary Treatment for Riesz Space Fractional Diffusion Equations

    We consider numerical boundary treatment for solving the Cauchy problems of the Riesz space fractional diffusion equation with compact initial data...

    Shaoqiang Tang, Gang Pang in Journal of Scientific Computing
    Article 09 October 2021
  5. Global Renormalised Solutions and Equilibration of Reaction–Diffusion Systems with Nonlinear Diffusion

    The global existence of renormalised solutions and convergence to equilibrium for reaction–diffusion systems with nonlinear diffusion are...

    Klemens Fellner, Julian Fischer, ... Bao Quoc Tang in Journal of Nonlinear Science
    Article Open access 07 June 2023
  6. Fractional Anomalous Diffusion

    In this chapter, we discuss the general problem of fractional diffusion equationFractional diffusion equation in connection with the anomalous...
    Luiz Roberto Evangelista, Ervin Kaminski Lenzi in An Introduction to Anomalous Diffusion and Relaxation
    Chapter 2023
  7. A non-uniform Haar wavelet method for a singularly perturbed convection–diffusion type problem with integral boundary condition on an exponentially graded mesh

    In this article, we present a numerical approach based on non-uniform Haar wavelets on an exponentially graded mesh to approximate the solution of a...

    Pramod Chakravarthy Podila, Vishwas Sundrani in Computational and Applied Mathematics
    Article 17 June 2023
  8. Exact rate of accelerated propagation in the Fisher-KPP equation with nonlocal diffusion and free boundaries

    Accelerated propagation is a new phenomenon associated with nonlocal diffusion problems. In this paper, we determine the exact rate of accelerated...

    Yihong Du, Wenjie Ni in Mathematische Annalen
    Article Open access 12 September 2023
  9. Implicit interpolation method for immersed boundary methods

    Immersed boundary (IB) methods have been successfully implemented for different applications. This paper focuses on the immersed boundary...

    Md. Sujaat Ali, Renan de Holanda Sousa, ... Jean-Yves Trépanier in Journal of Engineering Mathematics
    Article Open access 17 April 2024
  10. Threshold Dynamics for Infection Age-Structured Epidemic Models with Spatial Diffusion and Degenerate Diffusion

    This paper is devoted to studying the threshold dynamics for infection age-structured epidemic models with non-degenerate diffusion and degenerate...

    Jiawei Huo, Qiang Huo, Rong Yuan in Journal of Dynamics and Differential Equations
    Article 21 July 2023
  11. Economic Growth and Pollution Diffusion

    As an additional application of the methods presented in this volume, in this chapter, we introduce an environmental issue concerning the control of...
    Sebastian Aniţa, Vincenzo Capasso, Simone Scacchi in Mathematical Modeling and Control in Life and Environmental Sciences
    Chapter 2024
  12. Global dynamics for an SVEIR epidemic model with diffusion and nonlinear incidence rate

    In this paper, we investigate an SVEIR epidemic model with reaction–diffusion and nonlinear incidence. We establish the well-posedness of the...

    Article Open access 26 October 2022
  13. Hopf Bifurcation Analysis of a Predator–Prey Model with Prey Refuge and Fear Effect Under Non-diffusion and Diffusion

    In this paper, we propose a predator–prey model with prey refuge and fear effect under non-diffusion and diffusion. For the non-diffusion ODE model,...

    Haisu Zhang, Haokun Qi in Qualitative Theory of Dynamical Systems
    Article 19 July 2023
  14. Analysis of a Full Discretization for a Fractional/Normal Diffusion Equation with Rough Dirichlet Boundary Data

    This paper considers a fully discrete approximation of a fractional/normal diffusion equation with rough Dirichlet boundary data. The approximation...

    Qin Zhou, Minfu Feng in Journal of Scientific Computing
    Article 11 June 2022
  15. Numerical solution of two-dimensional inverse time-fractional diffusion problem with non-local boundary condition using a-polynomials

    In this paper, we obtain the numerical solution of two-dimensional inverse time-fractional diffusion problem with non-local boundary condition using a ...

    Jalal Hajishafieiha, Saeid Abbasbandy in Journal of Applied Mathematics and Computing
    Article 16 November 2022
  16. Stability analysis of a second-order difference scheme for the time-fractional mixed sub-diffusion and diffusion-wave equation

    This study investigates a class of initial-boundary value problems pertaining to the time-fractional mixed sub-diffusion and diffusion-wave equation...

    Anatoly A. Alikhanov, Mohammad Shahbazi Asl, Chengming Huang in Fractional Calculus and Applied Analysis
    Article 20 December 2023
  17. Convergence to Sharp Traveling Waves of Solutions for Burgers-Fisher-KPP Equations with Degenerate Diffusion

    This paper is concerned with the convergence to sharp traveling waves of solutions with semi-compactly supported initial data for Burgers-Fisher-KPP...

    Tianyuan Xu, Shanming Ji, ... **gxue Yin in Journal of Nonlinear Science
    Article 16 March 2024
  18. Controlled Diffusion Processes

    InDiffusion process the remainder of these notes we consider a class of $$\mathbb...
    Onésimo Hernández-Lerma, Leonardo R. Laura-Guarachi, ... David González-Sánchez in An Introduction to Optimal Control Theory
    Chapter 2023
  19. Aggregation Kinetics in Sedimentation: Effect of Diffusion of Particles

    Abstract

    The aggregation kinetics of settling particles is studied theoretically and numerically using the advection–diffusion equation. Agglomeration...

    N. V. Brilliantov, R. R. Zagidullin, ... A. P. Smirnov in Computational Mathematics and Mathematical Physics
    Article 01 April 2023
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