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We consider a semi-discrete finite element approximation for a system consisting of the evolution of a planar curve evolving by forced curve shortening flow inside a given bounded domain $\Omega \subset \mathbb{R}^2$, such that the curve…

数值分析 · 数学 2020-03-17 Vanessa Styles , James Van Yperen

We consider a finite element approximation for a system consisting of the evolution of a closed planar curve by forced curve shortening flow coupled to a reaction-diffusion equation on the evolving curve. The scheme for the curve evolution…

数值分析 · 数学 2016-07-07 John W. Barrett , Klaus Deckelnick , Vanessa Styles

We present and analyze a semi-discrete finite element scheme for a system consisting of a geometric evolution equation for a curve and a parabolic equation on the evolving curve. More precisely, curve shortening flow with a forcing term…

数值分析 · 数学 2015-10-22 Paola Pozzi , Bjorn Stinner

We consider a numerical scheme for the approximation of a system that couples the evolution of a two--dimensional hypersurface to a reaction--diffusion equation on the surface. The surfaces are assumed to be graphs and evolve according to…

数值分析 · 数学 2021-04-13 Klaus Deckelnick , Vanessa Styles

We consider a fully practical finite element approximation of a diffuse interface model for tumour growth that takes the form of a degenerate parabolic system. In addition to showing stability bounds for the approximation, we prove…

数值分析 · 数学 2022-02-07 Joe Eyles , Robert Nürnberg , Vanessa Styles

We introduce novel finite element schemes for curve diffusion and elastic flow in arbitrary codimension. The schemes are based on a variational form of a system that includes a specifically chosen tangential motion. We derive optimal $L^2$-…

数值分析 · 数学 2025-09-29 Klaus Deckelnick , Robert Nürnberg

Finite element approximation to a decoupled formulation for the quad--curl problem is studied in this paper. The difficulty of constructing elements with certain conformity to the quad--curl problems has been greatly reduced. For convex…

数值分析 · 数学 2021-12-09 Shuhao Cao , Long Chen , Xuehai Huang

We study convergence of the evolving finite element semi-discretization of a parabolic partial differential equation on an evolving bulk domain. The boundary of the domain evolves with a given velocity, which is then extended to the bulk by…

数值分析 · 数学 2020-09-24 Dominik Edelmann

We study a finite element approximation of a coupled fluid-structure interaction consisting of a three-dimensional incompressible viscous fluid governed by the unsteady Stokes equations and a two-dimensional elastic plate. To avoid the use…

数值分析 · 数学 2026-02-10 Lander Besabe , Hyesuk Lee

An evolving surface finite element discretisation is analysed for the evolution of a closed two-dimensional surface governed by a system coupling a generalised forced mean curvature flow and a reaction--diffusion process on the surface,…

数值分析 · 数学 2022-06-06 Charles M. Elliott , Harald Garcke , Balázs Kovács

A finite element approach for approximating the solution of a mathematical model for the response of a penetrable, bounded object (obstacle) to the excitation by an external electromagnetic field is presented and investigated. The model…

数值分析 · 数学 2026-04-16 Lutz Angermann

We propose a novel finite element method scheme for singularly perturbed advection-diffusion-reaction problems, which combines certain quantum-assisted stabilization scheme with a classical h-adaptive approach to provide automatic error…

数值分析 · 数学 2024-11-20 R. H. Drebotiy , H. A. Shynkarenko

New variational formulations are devised for the curl--div system, and the corresponding finite element approximations are shown to converge. Curl--free and divergence--free finite elements are employed for discretizing the problem.

数值分析 · 数学 2015-12-31 Ana Alonso Rodríguez , Enrico Bertolazzi , Alberto Valli

A proof of convergence is given for a novel evolving surface finite element semi-discretization of Willmore flow of closed two-dimensional surfaces, and also of surface diffusion flow. The numerical method proposed and studied here…

数值分析 · 数学 2020-07-31 Balázs Kovács , Buyang Li , Christian Lubich

We consider a system of nonlinear partial differential equations describing the motion of an incompressible chemically reacting generalized Newtonian fluid in three space dimensions. The governing system consists of a steady…

数值分析 · 数学 2017-08-29 Seungchan Ko , Endre Suli

We use a deterministic particle method to produce numerical approximations to the solutions of an evolution cross-diffusion problem for two populations. According to the values of the diffusion parameters related to the intra and…

数值分析 · 数学 2024-01-29 Gonzalo Galiano , Virginia Selgas

This article presents a new finite element method for convection-diffusion equations by enhancing the continuous finite element space with a flux space for flux approximations that preserve the important mass conservation locally on each…

数值分析 · 数学 2017-10-24 Yujie Liu , Junping Wang , Qingsong Zou

We develop a micromorphic-based approach for finite element stabilization of reaction-convection-diffusion equations, by gradient enhancement of the field of interest via introducing an auxiliary variable. The well-posedness of the…

数学物理 · 物理学 2025-10-15 Soheil Firooz , B. Daya Reddy , Paul Steinmann

We propose an adaptive finite element method to approximate the solutions to reaction-diffusion systems on time-dependent domains and surfaces. We derive a computable error estimator that provides an upper bound for the error in the…

数值分析 · 数学 2013-08-13 Chandrasekhar Venkataraman , Omar Lakkis , Anotida Madzvamuse

Modeling the spontaneous evolution of morphology in natural systems and its preservation by proportionate growth remains a major scientific challenge. Yet, it is conceivable that if the basic mechanisms of growth and the coupled kinetic…

软凝聚态物质 · 物理学 2020-12-30 Virginia von Streng , Rami Abi-Akl , Bianca Giovanardi , Tal Cohen
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