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相关论文: Sparse optimal control of a phase field tumour mod…

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We derive a Cahn-Hilliard-Darcy model to describe multiphase tumour growth taking interactions with multiple chemical species into account as well as the simultaneous occurrence of proliferating, quiescent and necrotic regions. Via a…

偏微分方程分析 · 数学 2019-11-01 Harald Garcke , Kei Fong Lam , Robert Nürnberg , Emanuel Sitka

We propose and analyze an optimal control problem associated with a Keller-Segel type parabolic system with chemoattraction, modeling the glioblastoma growth in a bi-dimensional bounded domain, influenced by the presence of oxygen where the…

The uncontrolled proliferation of cancer cells and their interaction with healthy tissue poses a major challenge in oncology. This manuscript develops and analyzes mathematical models that describe tumor response to radiotherapy by…

We introduce the rigorous limit process connecting finite dimensional sparse optimal control problems with ODE constraints, modeling parsimonious interventions on the dynamics of a moving population divided into leaders and followers, to an…

最优化与控制 · 数学 2015-06-18 Massimo Fornasier , Benedetto Piccoli , Francesco Rossi

This paper is concerned with a constrained stochastic linear-quadratic optimal control problem, in which the terminal state is fixed and the initial state is constrained to lie in a stochastic linear manifold. The controllability of…

最优化与控制 · 数学 2019-06-11 Xiuchun Bi , Jingrui Sun , Jie Xiong

Path integral control is an effective method in cancer drug treatment, providing a structured approach to handle the complexities and unpredictability of tumor behavior. Utilizing mathematical principles from physics, this technique…

组织与器官 · 定量生物学 2024-12-19 Jason Sonith

In this paper, we investigate a distributed optimal control problem for a convective viscous Cahn-Hilliard system with dynamic boundary conditions. Such systems govern phase separation processes between two phases taking place in an…

偏微分方程分析 · 数学 2017-09-08 Pierluigi Colli , Gianni Gilardi , Jürgen Sprekels

We consider an optimal control problem that entails the minimization of a nondifferentiable cost functional, fractional diffusion as state equation and constraints on the control variable. We provide existence, uniqueness and regularity…

数值分析 · 数学 2017-04-05 Enrique Otárola , Abner J. Salgado

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 generalized and relaxed version…

偏微分方程分析 · 数学 2019-08-29 Pierluigi Colli , Gianni Gilardi , Jürgen Sprekels

We consider optimal control problems for systems governed by mean-field stochastic differential equations, where the control enters both the drift and the diffusion coefficient. We study the relaxed model, in which admissible controls are…

最优化与控制 · 数学 2017-02-02 Khaled Bahlali , Meriem Mezerdi , Brahim Mezerdi

Although optimal control theory has been used for the theoretical study of anti-cancerous drugs scheduling optimization, with the aim of reducing the primary tumor volume, the effect on metastases is often ignored. Here, we use a previously…

组织与器官 · 定量生物学 2013-06-21 Sebastien Benzekry , Philip Hahnfeldt

In this paper, we study an optimal control problem for a viscous Cahn--Hilliard system with zero Neumann boundary conditions in which a hyperbolic relaxation term involving the second time derivative of the chemical potential has been added…

最优化与控制 · 数学 2025-03-27 Pierluigi Colli , Jürgen Sprekels

In this paper, we study the optimal control of a discrete-time stochastic differential equation (SDE) of mean-field type, where the coefficients can depend on both a function of the law and the state of the process. We establish a new…

最优化与控制 · 数学 2022-10-05 Arzu Ahmadova , Nazim I. Mahmudov

In this work, we consider a diffuse interface model for tumour growth in the presence of a nutrient which is consumed by the tumour. The system of equations consists of a Cahn--Hilliard equation with source terms for the tumour cells and a…

数值分析 · 数学 2022-05-09 Harald Garcke , Dennis Trautwein

In this work we investigate a phase field model for damage processes in two-dimensional viscoelastic media with nonhomogeneous Neumann data describing external boundary forces. In the first part we establish global-in-time existence,…

偏微分方程分析 · 数学 2016-09-16 M. Hassan Farshbaf-Shaker , Christian Heinemann

We consider a current-biased dc SQUID in the presence of an applied time-dependent bias current or magnetic flux. The phase dynamics of such a Josephson device is equivalent to that of a quantum particle trapped in a $1-$D anharmonic…

介观与纳米尺度物理 · 物理学 2015-05-13 H. Jirari , F. W. J. Hekking , O. Buisson

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

This paper considers the stochastic linear quadratic optimal control problem in which the control domain is nonconvex. By the functional analysis and convex perturbation methods, we establish a novel maximum principle. The application of…

最优化与控制 · 数学 2017-11-01 Shaolin Ji , Xiaole Xue

We extend previous weak well-posedness results obtained in Frigeri et al. (2017) concerning a non-local variant of a diffuse interface tumor model proposed by Hawkins-Daarud et al. (2012). The model consists of a non-local Cahn--Hilliard…

偏微分方程分析 · 数学 2021-01-20 S. Frigeri , K. F. Lam , A. Signori

In this paper, we establish a general stochastic maximum principle for optimal control for systems described by a continuous-time Markov regime-switching stochastic recursive utilities model. The control domain is postulated not to be…

最优化与控制 · 数学 2019-05-02 Liangquan Zhang , Xun Li