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We establish, for smooth enough initial data, the global well-posedness (existence, uniqueness and continuous dependence on initial data) of solutions, for an inviscid three-dimensional {\it slow limiting ocean dynamics} model. This model…

偏微分方程分析 · 数学 2013-11-26 Chongsheng Cao , Aseel Farhat , Edriss S. Titi

The landscape of computational modeling in cancer systems biology is diverse, offering a spectrum of models and frameworks, each with its own trade-offs and advantages. Ideally, models are meant to be useful in refining hypotheses, to…

动力系统 · 数学 2024-05-31 Erik Blom , Stefan Engblom

The framework of Inferential Models (IMs) has recently been developed in search of what is referred to as the holy grail of statistical theory, that is, prior-free probabilistic inference. Its method of Conditional IMs (CIMs) is a critical…

统计理论 · 数学 2023-01-13 Rongrong Zhang , Michael Y. Zhu , Chuanhai Liu

We study an infection-age structured epidemic model in which both the infectivity and the rate of loss of immunity depend on the time-since-infection. The model can be equivalently viewed as a nonlinear renewal equation for the incidence of…

动力系统 · 数学 2025-11-13 Francesca Scarabel , Harry Coldwell , Tyler Cassidy

A microscopic model able to describe simultaneously the dynamic viscosity and the self-diffusion coefficient of fluids is presented. This model is shown to emerge from the introduction of fractional calculus in a usual model of condensed…

统计力学 · 物理学 2021-11-24 F. Aitken , F. Volino

We develop a theory of existence and uniqueness for the following porous medium equation with fractional diffusion, $$ \{ll} \dfrac{\partial u}{\partial t} + (-\Delta)^{\sigma/2} (|u|^{m-1}u)=0, & \qquad x\in\mathbb{R}^N,\; t>0, [8pt]…

偏微分方程分析 · 数学 2011-04-05 Arturo de Pablo , Fernando Quirós , Ana Rodríguez , Juan Luis Vázquez

The paper proposes a new fragmentation mechanism of dendrite arms. The theoretical basis of this mechanism is a shift in the thermodynamical equilibrium at the solid-liquid interface due to the presence of elastic energy. This effect is…

材料科学 · 物理学 2008-10-14 S. Ananiev , P. Nikrityuk , K. Eckert

This article is devoted to questions concerning the existence of solutions for partial differential equation problems modeling granular flows. The models studied take into account the complex threshold rheology of these flows, as well as…

偏微分方程分析 · 数学 2025-05-26 Laurent Chupin , Thierry Dubois

We study an initial-boundary value problem for the incompressible Navier-Stokes-Cahn-Hilliard system with non-constant density proposed by Abels, Garcke and Gr\"{u}n in 2012. This model arises in the diffuse interface theory for binary…

偏微分方程分析 · 数学 2023-02-21 Helmut Abels , Harald Garcke , Andrea Giorgini

Due to recent advances in synthetic biology and artificial life, the origin of life is currently a hot topic of research. We review the literature and argue that the two traditionally competing "replicator-first" and "metabolism-first"…

人工智能 · 计算机科学 2013-11-21 Tom Froese , Nathaniel Virgo , Takashi Ikegami

In this paper we study the continuous coagulation and multiple fragmentation equation for the mean-field description of a system of particles taking into account the combined effect of the coagulation and the fragmentation processes in…

偏微分方程分析 · 数学 2018-11-16 Prasanta Kumar Barik

Models issued from ecology, chemical reactions and several other application fields lead to semi-linear parabolic equations with super-linear growth. Even if, in general, blow-up can occur, these models share the property that mass control…

偏微分方程分析 · 数学 2019-08-27 El-Haj Laamri , Benoît Perthame

Mechanisms of immunity, and of the host-pathogen interactions in general are among the most fundamental problems of medicine, ecology, and evolution studies. Here, we present a microscopic, protein-level, sequence-based model of immune…

生物大分子 · 定量生物学 2007-11-22 Muyoung Heo , Konstantin B. Zeldovich , Eugene I. Shakhnovich

Models of contagion arise broadly both in the biological and social sciences, with applications ranging from the transmission of infectious diseases to the diffusion of innovations and the spread of cultural fads. In this Letter, we…

无序系统与神经网络 · 物理学 2009-11-10 P. S. Dodds , D. J. Watts

We discuss the non-uniqueness of continuous solutions to differential equations with a {\it discrete } state-dependent delay and continuous initial functions. We are interested not only in the fact (conditions) of non-uniqueness, but in…

经典分析与常微分方程 · 数学 2026-04-14 Alexander Rezounenko

Flocculation is the process whereby particles (i.e., flocs) in suspension reversibly combine and separate. The process is widespread in soft matter and aerosol physics as well as environmental science and engineering. We consider a general…

动力系统 · 数学 2018-04-24 Inom Mirzaev , David M. Bortz

In this paper, we study an analytically tractable SIS model with a non-linear incidence rate for the number of infectious individuals described through a stochastic differential equation (SDE). We guarantee the existence of a positive…

概率论 · 数学 2024-04-23 J. S. Builes , Cristian F. Coletti , Leon A. Valencia

Different research communities have developed various approaches to assess the credibility of predictive models. Each approach usually works well for a specific type of model, and under some epistemic conditions that are normally satisfied…

A new age-structured diffusive model for the mathematical modelling of epidemics is suggested. The model can be considered as a generalization of two models suggested earlier for the same purposes. The Lie symmetry classification of the…

种群与进化 · 定量生物学 2025-07-31 Roman Cherniha , Vasyl' Davydovych

In this paper, we prove the global existence and singularity formation for a wave system from modelling nematic liquid crystals in one space dimension. In our model, although the viscous damping term is included, the solution with smooth…

偏微分方程分析 · 数学 2012-07-24 Geng Chen , Yuxi Zheng