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Showing 1-20 of 6,525 results
  1. A convection–diffusion problem with a large shift on Durán meshes

    A convection–diffusion problem with a large shift in space is considered. Numerical analysis of high order finite element methods on layer-adapted...

    Mirjana Brdar, Sebastian Franz, Hans-Görg Roos in Calcolo
    Article 28 December 2023
  2. The Backward Problem of Stochastic Convection–Diffusion Equation

    In this paper, we consider a backward problem for the stochastic convection–diffusion equation. The source term is driven by the fraction Brownian...

    Article 25 September 2022
  3. Using Deep Neural Networks for Detecting Spurious Oscillations in Discontinuous Galerkin Solutions of Convection-Dominated Convection–Diffusion Equations

    Standard discontinuous Galerkin finite element solutions to convection-dominated convection–diffusion equations usually possess sharp layers but also...

    Derk Frerichs-Mihov, Linus Henning, Volker John in Journal of Scientific Computing
    Article Open access 25 September 2023
  4. The supercloseness of the finite element method for a singularly perturbed convection-diffusion problem on a Bakhvalov-type mesh in 2D

    For singularly perturbed convection-diffusion problems, supercloseness analysis of the finite element method is still open on Bakhvalov-type meshes,...

    Chunxiao Zhang, ** Zhang in Acta Mathematica Scientia
    Article 21 March 2024
  5. Supercloseness of the NIPG method for a singularly perturbed convection diffusion problem on Shishkin mesh

    Some popular stabilization techniques, such as nonsymmetric interior penalty Galerkin (NIPG) method, have important application value in...

    ** Zhang, **aoqi Ma in Calcolo
    Article 28 February 2024
  6. A SUPG formulation augmented with shock-capturing for solving convection-dominated reaction–convection–diffusion equations

    In this computational study, stabilized finite element solutions of convection-dominated stationary and linear reaction–convection–diffusion...

    Süleyman Cengizci, Ömür Uğur, Srinivasan Natesan in Computational and Applied Mathematics
    Article 28 June 2023
  7. Multilevel Monte Carlo Methods for Stochastic Convection–Diffusion Eigenvalue Problems

    We develop new multilevel Monte Carlo (MLMC) methods to estimate the expectation of the smallest eigenvalue of a stochastic convection–diffusion...

    Tiangang Cui, Hans De Sterck, ... Robert Scheichl in Journal of Scientific Computing
    Article Open access 03 May 2024
  8. Learning the flux and diffusion function for degenerate convection-diffusion equations using different types of observations

    In recent years, there has been an increasing interest in utilizing deep learning-based techniques to predict solutions to various partial...

    Qing Li, Steinar Evje in BIT Numerical Mathematics
    Article Open access 30 March 2024
  9. Preconditioning of discrete state- and control-constrained optimal control convection-diffusion problems

    We consider the iterative solution of algebraic systems, arising in optimal control problems constrained by a partial differential equation with...

    Ivo Dravins, Maya Neytcheva in Calcolo
    Article Open access 08 October 2023
  10. The Role of Convection in the Limit Shape of the Critical Front Profile for Born-Infeld Diffusion Models

    In this paper, we deal with models with Born-Infeld (or relativistic ) type diffusion and monostable reaction, investigating the effect of the...

    Maurizio Garrione, Mohamed Jleli, Bessem Samet in Milan Journal of Mathematics
    Article Open access 13 May 2024
  11. Richardson extrapolation method for 2D-SPP on VB mesh singularly perturbed convection–diffusion problem on a Vulanović–Bakhvalov mesh

    This paper discusses the Richardson extrapolation technique of an upwind finite difference scheme on a modified Bakhvalov-type mesh (named...

    Yige Liao, Li-Bin Liu, ... Guangqing Long in Computational and Applied Mathematics
    Article 18 March 2023
  12. A Positivity-Preserving and Robust Fast Solver for Time-Fractional Convection–Diffusion Problems

    This paper presents a fast solver for time-fractional two-dimensional convection-diffusion problems that maintains non-negativity of numerical...

    Boyang Yu, Yonghai Li, Jiangguo Liu in Journal of Scientific Computing
    Article 05 February 2024
  13. Stochastic discontinuous Galerkin methods for robust deterministic control of convection-diffusion equations with uncertain coefficients

    We investigate a numerical behavior of robust deterministic optimal control problem subject to a convection-diffusion equation containing uncertain...

    Pelin Çi̇loğlu, Hamdullah Yücel in Advances in Computational Mathematics
    Article 27 February 2023
  14. Computational analysis for fractional characterization of coupled convection-diffusion equations arising in MHD flows

    The work is devoted to the fractional characterization of time-dependent coupled convection-diffusion systems arising in magnetohydrodynamics (MHD)...

    M. Hamid, M. Usman, Zhenfu Tian in Applied Mathematics and Mechanics
    Article 04 April 2023
  15. High order mimetic differences applied to the convection–diffusion equation: a matrix stability analysis

    The convection–diffusion equation describes physical phenomena where particles or energy are transferred  within  a  physical  system due to the...

    Jorge Villamizar, Larry Mendoza, ... Jose E. Castillo in GEM - International Journal on Geomathematics
    Article 13 September 2023
  16. Virtual element method for the quasilinear convection-diffusion-reaction equation on polygonal meshes

    In this paper, we analyze the virtual element method for the quasilinear convection-diffusion-reaction equation. The most important part in the...

    M. Arrutselvi, E. Natarajan, S. Natarajan in Advances in Computational Mathematics
    Article 14 November 2022
  17. A posteriori error estimates for the time-dependent Navier-Stokes system coupled with the convection-diffusion-reaction equation

    In this paper we study the a posteriori error estimates for the time dependent Navier-Stokes system coupled with the convection-diffusion-reaction...

    Jad Dakroub, Joanna Faddoul, ... Toni Sayah in Advances in Computational Mathematics
    Article 14 August 2023
  18. On Some Inverse Problems of Recovering Sources in Stationary Convection-Diffusion Models

    Abstract

    We examine well-posedness questions in the Sobolev spaces of inverse problems of recovering the source functions in stationary...

    V. A. Baranchuk, S. G. Pyatkov in Lobachevskii Journal of Mathematics
    Article 01 March 2023
  19. A numerical method for singularly perturbed convection–diffusion–reaction equations on polygonal meshes

    In this paper, we design and develop a weak Galerkin finite-element numerical method for solving singularly perturbed convection–diffusion–reaction...

    Naresh Kumar, Şuayip Toprakseven, Ram Jiwari in Computational and Applied Mathematics
    Article 05 January 2024
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