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相关论文: On a Cahn--Hilliard--Darcy system for tumour growt…

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A distributed optimal control problem for a diffuse interface model, which physical context is that of tumour growth dynamics, is addressed. The system we deal with comprises a Cahn--Hilliard equation for the tumour fraction coupled with a…

偏微分方程分析 · 数学 2021-01-20 Andrea Signori

We analyze a system of cross-diffusion equations that models the growth of an avascular-tumor spheroid. The model incorporates two nonlinear diffusion effects, degeneracy type and super diffusion. We prove the global existence of weak…

偏微分方程分析 · 数学 2022-10-14 Samiha Belmor

We consider weak solutions to a problem modeling tumor growth. Under certain conditions on the initial data, solutions can be obtained by passing to the stiff (incompressible) limit in a porous medium type problem with a Lotka-Volterra…

偏微分方程分析 · 数学 2015-12-23 Antoine Mellet , Benoît Perthame , Fernando Quiros

We discuss the sharp interface limit of a diffuse interface model for a coupled Cahn-Hilliard--Darcy system that models tumor growth when a certain parameter $\varepsilon>0$, related to the interface thickness, tends to zero. In particular,…

偏微分方程分析 · 数学 2016-10-17 S. Melchionna , E. Rocca

In this paper, we tackle the problem of reconstructing earlier tumour configurations starting from a single spatial measurement at a later time. We describe the tumour evolution through a diffuse interface model coupling a…

偏微分方程分析 · 数学 2024-09-25 Abramo Agosti , Elena Beretta , Cecilia Cavaterra , Matteo Fornoni , Elisabetta Rocca

We investigate the dynamics of a nonlinear system modeling tumor growth with drug application. The tumor is viewed as a mixture consisting of proliferating, quiescent and dead cells as well as a nutrient in the presence of a drug. The…

偏微分方程分析 · 数学 2015-06-22 Donatella Donatelli , Konstantina Trivisa

The aim of this article is to study a Cahn-Hilliard model for a multicomponent mixture with cross-diffusion effects, degenerate mobility and where only one of the species does separate from the others. We define a notion of weak solution…

偏微分方程分析 · 数学 2020-07-03 Virginie Ehrlacher , Greta Marino , Jan-Frederik Pietschmann

In this work, we present and analyse a system of coupled partial differential equations, which models tumour growth under the influence of subdiffusion, mechanical effects, nutrient supply, and chemotherapy. The subdiffusion of the system…

偏微分方程分析 · 数学 2021-10-08 Marvin Fritz , Christina Kuttler , Mabel L. Rajendran , Barbara Wohlmuth , Laura Scarabosio

In this work, we analyze a diffuse-interface model for tumor growth, subject to multiplicative white noises, posed on a bounded domain $\mathcal{O} \subset \mathbb{R}^d$, $d=2,3$. The model couples a stochastic incompressible convective…

偏微分方程分析 · 数学 2026-05-29 Kalpana Rawat , Kumarasamy Sakthivel

We introduce a multi-species diffuse interface model for tumor growth, characterized by its incorporation of essential features related to chemotaxis, angiogenesis and proliferation mechanisms. We establish the weak well-posedness of the…

偏微分方程分析 · 数学 2023-11-23 Abramo Agosti , Andrea Signori

In this paper, we study a system of three evolutionary operator equations involving fractional powers of selfadjoint, monotone, unbounded, linear operators having compact resolvents. This system constitutes a generalization of a phase field…

偏微分方程分析 · 数学 2019-06-27 Pierluigi Colli , Gianni Gilardi , Jürgen Sprekels

We consider the inverse problem of identifying parameters in a variant of the diffuse interface model for tumour growth model proposed by Garcke, Lam, Sitka and Styles (Math. Models Methods Appl. Sci. 2016). The model contains three…

最优化与控制 · 数学 2017-07-24 Christian Kahle , Kei Fong Lam

We consider a one--spatial dimensional tumour growth model [2, 3, 4] that consists of three dependent variables of space and time: volume fraction of tumour cells, velocity of tumour cells, and nutrient concentration. The model variables…

数值分析 · 数学 2020-07-01 Jerome Droniou , Neela Nataraj , Gopikrishnan Chirappurathu Remesan

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

In this paper we study nonlocal-to-local asymptotics for a tumor-growth model coupling a viscous Cahn-Hilliard equation describing the tumor proportion with a reaction-diffusion equation for the nutrient phase parameter. First, we prove…

偏微分方程分析 · 数学 2023-11-20 Elisa Davoli , Elisabetta Rocca , Luca Scarpa , Lara Trussardi

We introduce here a new diffuse interface thermodynamically consistent non-isothermal model for tumor growth in presence of a nutrient in a domain $\Omega \subset \mathbb{R}^3$. In particular our system describes the growth of a tumor…

偏微分方程分析 · 数学 2022-12-19 Erica Ipocoana

We consider a diffuse-interface model for two-phase incompressible viscous flows with a soluble surfactant in a bounded porous medium. This hydrodynamic system consists of a Darcy--Forchheimer equation for the seepage velocity…

偏微分方程分析 · 数学 2026-03-24 Maurizio Grasselli , Bohan Ouyang , Andrea Poiatti , Hao Wu

In this work we study a tissue growth model with applications to tumour growth. The model is based on that of Perthame, Quir\'os, and V\'azquez proposed in 2014 but incorporates the advective effects caused, for instance, by the presence of…

偏微分方程分析 · 数学 2021-03-04 Noemi David , Markus Schmidtchen

An asymptotic analysis for a system with equation and dynamic boundary condition of Cahn-Hilliard type is carried out as the coefficient of the surface diffusion acting on the phase variable tends to 0, thus obtaining a forward-backward…

偏微分方程分析 · 数学 2021-06-03 Pierluigi Colli , Takeshi Fukao , Luca Scarpa

We consider a saturated porous medium in the regime of solid-fluid segregation under an applied pressure on the solid constituent. We prove that, depending on the dissipation mechanism, the dynamics is described either by a Cahn-Hilliard or…

材料科学 · 物理学 2015-05-30 Emilio N. M. Cirillo , Nicoletta Ianiro , Giulio Sciarra