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Here we study a nonlinear thermoelasticity hyperbolic-parabolic system describing the balance of momentum and internal energy of a heat-conducting elastic body, preserving the positivity of temperature. So far, no global existence results…

Analysis of PDEs · Mathematics 2023-12-20 Tomasz Cieślak , Boris Muha , Srđan Trifunović

This paper is concerned with the traveling wave solutions of delayed reaction-diffusion systems. By using Schauder's fixed point theorem, the existence of traveling wave solutions is reduced to the existence of generalized upper and lower…

Dynamical Systems · Mathematics 2014-02-19 Guo Lin , Shigui Ruan

This article presents a relationship between the sharp constant of the Sobolev inequality and the initial criterion to the global existence of degenerate parabolic-parabolic Keller-Segel system with the diffusion exponent…

Analysis of PDEs · Mathematics 2019-05-01 Jinhuan Wang , Yue Li , Li Chen

We consider a parabolic-parabolic Keller-Segel system of chemotaxis model with singular sensitivity $u_t=\Delta u-\chi\nabla\cdot(\frac{u}{v}\nabla v)$, $v_t=k\Delta v-v+u$ under homogeneous Neumann boundary conditions in a smooth bounded…

Analysis of PDEs · Mathematics 2015-11-25 Xiangdong Zhao , Sining Zheng

In the present article we consider several issues concerning the doubly parabolic Keller-Segel system in the plane, when the initial data belong to critical scaling-invariant Lebesgue spaces. More specifically, we analyze the global…

Analysis of PDEs · Mathematics 2014-03-12 Lucilla Corrias , Miguel Escobedo , Julia Matos

We derive the uniqueness of weak solutions to the Shigesada-Kawasaki-Teramoto (SKT) systems using the adjoint problem argument. Combining with [PT17] we then derive the well-posedness for the SKT systems in space dimension $d\le 4$

Analysis of PDEs · Mathematics 2017-03-31 Du Pham , Roger Temam

We consider a mathematical model for heterogeneous catalysis in a finite three-dimensional pore of cylinder-like geometry, with the lateral walls acting as a catalytic surface. The system under consideration consists of a…

Analysis of PDEs · Mathematics 2017-08-29 Dieter Bothe , Matthias Köhne , Siegfried Maier , Jürgen Saal

We prove existence and uniqueness of global solutions for a class of reaction-advection-anisotropic-diffusion systems whose reaction terms have a "triangular structure". We thus extend previous results to the case of time-space dependent…

Analysis of PDEs · Mathematics 2016-02-10 Dieter Bothe , André Fischer , Michel Pierre , Guillaume Rolland

Here we investigate global strong solutions for a class of partially dissipative hyperbolic systems in the framework of critical homogeneous Besov spaces. Our primary goal is to extend the analysis of our previous paper [10] to a functional…

Analysis of PDEs · Mathematics 2022-01-19 Timothée Crin-Barat , Raphaël Danchin

We prove global existence of strong solutions for the Vlasov-Poisson system in a convex bounded domain in the plasma physics case assuming homogeneous Dirichlet boundary conditions for the electric potential and the specular reflection…

Analysis of PDEs · Mathematics 2011-01-31 Hyung Ju Hwang , Jaewoo Jung , Juan J. L. Velazquez

This paper proposes a novel reaction-diffusion system approximation tailored for singular diffusion problems, typified by the fast diffusion equation. While such approximation methods have been successfully applied to degenerate parabolic…

Analysis of PDEs · Mathematics 2026-04-01 Hideki Murakawa , Florian Salin

We develop techniques to capture the effect of transport on the long-term dynamics of small, localized initial data in nonlinearly coupled reaction-diffusion-advection equations on the real line. It is well-known that quadratic or cubic…

Analysis of PDEs · Mathematics 2020-07-23 Björn de Rijk , Guido Schneider

We study a Keller-Segel type chemotaxis model with a modified sensitivity function in a bounded domain $\Omega\subset \mathbb{R}^N$, $N\geq2$. The global existence of classical solutions to the fully parabolic system is established provided…

Analysis of PDEs · Mathematics 2015-05-26 Qi Wang

We study the Kuramoto-Sivashinsky equation (KSE) in scalar form on the two-dimensional torus with and without advection by an incompressible vector field. We prove local existence of mild solutions for arbitrary data in L2. We then study…

Analysis of PDEs · Mathematics 2020-09-10 Yuanyuan Feng , Anna L. Mazzucato

Recently, there has been a wide interest in the study of aggregation equations and Patlak-Keller-Segel (PKS) models for chemotaxis with degenerate diffusion. The focus of this paper is the unification and generalization of the…

Analysis of PDEs · Mathematics 2015-05-19 Jacob Bedrossian , Nancy Rodríguez , Andrea Bertozzi

In this paper, we investigate the global well-posedness of reaction-diffusion systems with transport noise on the $d$-dimensional torus. We show new global well-posedness results for a large class of scalar equations (e.g. the Allen-Cahn…

Analysis of PDEs · Mathematics 2024-08-16 Antonio Agresti , Mark Veraar

This work is concerned with the study of explicit solutions for generalized coupled reaction-diffusion and Burgers-type systems with variable coefficients. Including nonlinear models with variable coefficients such as diffusive…

Mathematical Physics · Physics 2024-06-26 José M. Escorcia , Erwin Suazo

We prove in the cases of plane and hyperbolic symmetries a global in time existence result in the future for comological solutions of the Einstein-Vlasov-scalar field system, with the sources generated by a distribution function and a…

General Relativity and Quantum Cosmology · Physics 2009-11-11 David Tegankong

In this paper, we are concerned with a reaction diffusion system arising from a nuclear reactor model in bounded domains with nonlinear boundary conditions. We show the existence of a stationary solution and its ordered uniqueness. It is…

Analysis of PDEs · Mathematics 2018-05-14 Kosuke Kita , Mitsuharu Ôtani , Hiroki Sakamoto

The global existence of classical solutions to reaction-diffusion systems in arbitrary space dimensions is studied. The nonlinearities are assumed to be quasi-positive, to have (slightly super-) quadratic growth, and to possess a mass…

Analysis of PDEs · Mathematics 2019-02-26 Klemens Fellner , Jeff Morgan , Bao Quoc Tang
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