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We shall establish the convergence of an adaptive conforming finite element method for the reconstruction of the distributed flux in a diffusion system. The adaptive method is based on a posteriori error estimators for the distributed flux,…

数值分析 · 数学 2013-09-10 Yifeng Xu , Jun Zou

This paper provides a unified mathematical analysis of a family of non-local diffuse interface models for tumor growth describing evolutions driven by long-range interactions. These integro-partial differential equations model cell-to-cell…

偏微分方程分析 · 数学 2021-07-07 Luca Scarpa , Andrea Signori

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 present and analyze new multi-species phase-field mathematical models of tumor growth and ECM invasion. The local and nonlocal mathematical models describe the evolution of volume fractions of tumor cells, viable cells (proliferative and…

偏微分方程分析 · 数学 2020-02-20 Marvin Fritz , Ernesto A. B. F. Lima , Vanja Nikolić , J. Tinsley Oden , Barbara Wohlmuth

Breast cancer invasion into adipose tissue strongly influences disease progression and metastasis. The degree of cancer cell invasion into adipose tissue depends on numerous biochemical and physical properties of cancer cells, adipocytes,…

This paper studies adaptive least-squares finite element methods for convection-dominated diffusion-reaction problems. The least-squares methods are based on the first-order system of the primal and dual variables with various ways of…

数值分析 · 数学 2023-01-30 Zhiqiang Cai , Binghe Chen , Jing Yang

Surface matching usually provides significant deformations that can lead to structural failure due to the lack of physical policy. In this context, partial surface matching of non-linear deformable bodies is crucial in engineering to govern…

人工智能 · 计算机科学 2023-03-17 Alban Odot , Guillaume Mestdagh , Yannick Privat , Stéphane Cotin

The thesis focuses on various techniques to find an alternate approximation method that could be universally used for a wide range of CFD problems but with low computational cost and low runtime. Various techniques have been explored within…

机器学习 · 计算机科学 2021-11-05 Siddharth Rout , Vikas Dwivedi , Balaji Srinivasan

In this paper, we address an optimal distributed control problem for a non-local model of phase-field type, describing the evolution of tumour cells in presence of a nutrient. The model couples a non-local and viscous Cahn-Hilliard equation…

偏微分方程分析 · 数学 2023-10-25 Matteo Fornoni

A semilinear reaction-diffusion two-point boundary value problem, whose second-order derivative is multiplied by a small positive parameter $\eps^2$, is considered. It can have multiple solutions. An asymptotic expansion is constructed for…

数值分析 · 数学 2013-03-20 Natalia Kopteva , Martin Stynes

We consider an elliptic partial differential equation with a random diffusion parameter discretized by a stochastic collocation method in the parameter domain and a finite element method in the spatial domain. We prove convergence of an…

数值分析 · 数学 2025-06-03 Michael Feischl , Andrea Scaglioni

This paper considers the scattering of a time-harmonic acoustic plane wave by an elastic body with an unbounded periodic surface. The original problem can be confined to the analysis of the fields in one periodic cell. With the help of the…

数值分析 · 数学 2026-02-11 Sijia Li , Lei Lin , Junliang Lv

Advection-Diffusion-Reaction (ADR) Partial Differential Equations (PDEs) appear in a wide spectrum of applications such as chemical reactors, concentration flows, and biological systems. A large number of these applications require the…

系统与控制 · 电气工程与系统科学 2022-03-29 Ahmed Elkhashap , Dirk Abel

Mathematical models describing the spatial spreading and invasion of populations of biological cells are often developed in a continuum modelling framework using reaction-diffusion equations. While continuum models based on linear diffusion…

元胞自动机与格子气 · 物理学 2024-01-23 Matthew J Simpson , Keeley M Murphy , Scott W McCue , Pascal R Buenzli

Intrinsically disordered regions of proteins play a crucial role in cell signaling and drug discovery. However, their high structural flexibility makes accurate residue-level prediction challenging. Existing methods often rely on…

神经与进化计算 · 计算机科学 2026-03-09 Shaokuan Wang , Pengshan Cui , Yining Qian , An-Yang Lu , Xianpeng Wang

Tumor growth is associated with cell invasion and mass-effect, which are traditionally formulated by mathematical models, namely reaction-diffusion equations and biomechanics. Such models can be personalized based on clinical measurements…

计算机视觉与模式识别 · 计算机科学 2018-01-26 Ling Zhang , Le Lu , Ronald M. Summers , Electron Kebebew , Jianhua Yao

We consider the inverse problem of parameter estimation in a diffuse interface model for tumour growth. The model consists of a fourth-order Cahn-Hilliard system and contains three phenomenological parameters: the tumour proliferation rate,…

数值分析 · 数学 2019-05-10 Christian Kahle , Kei Fong Lam , Jonas Latz , Elisabeth Ullmann

This paper is concerned with topology optimization based on a level set method using (doubly) nonlinear diffusion equations. Topology optimization using the level set method is called level set-based topology optimization, which is possible…

最优化与控制 · 数学 2023-03-22 Tomoyuki Oka , Takayuki Yamada

This paper presents an asymptotically compatible error bound for the finite element method (FEM) applied to a nonlocal diffusion model. The analysis covers two scenarios: meshes with and without shape regularity. For shape-regular meshes,…

数值分析 · 数学 2025-06-06 Yanzun Meng , Zuoqiang Shi

Glioblastoma Multiforme (GBM) is a highly aggressive brain tumour with limited therapeutic options and poor prognosis. This study presents a mathematical framework to investigate the efficacy of immunotherapy strategies based on cytotoxic…

种群与进化 · 定量生物学 2025-12-23 Francesca Ballatore , Lorenzo Scolaris , Chiara Giverso