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Bounded weak solutions to a particular class of degenerate parabolic cross-diffusion systems are shown to coincide with the unique strong solution determined by the same initial condition on the maximal existence interval of the latter. The…

Analysis of PDEs · Mathematics 2022-07-04 Philippe Laurençot , Bogdan-Vasile Matioc

In this work we study a degenerate pseudo-parabolic system with cross diffusion describing the evolution of the densities of an unsaturated two-phase flow mixture with dynamic capillary pressure in porous medium with saturation-dependent…

Analysis of PDEs · Mathematics 2019-05-27 Esther S. Daus , Josipa-Pina Milišić , Nicola Zamponi

The existence of global weak solutions to a parabolic energy-transport system in a bounded domain with no-flux boundary conditions is proved. The model can be derived in the diffusion limit from a kinetic equation with a linear collision…

Analysis of PDEs · Mathematics 2023-07-18 Gianluca Favre , Ansgar Jüngel , Christian Schmeiser , Nicola Zamponi

We prove global existence of nonnegative weak solutions to a degenerate parabolic system which models the interaction of two thin fluid films in a porous medium. Furthermore, we show that these weak solutions converge at an exponential rate…

Analysis of PDEs · Mathematics 2011-10-31 Joachim Escher , Philippe Laurencot , Bogdan-Vasile Matioc

The large-time asymptotics of the solutions to a class of degenerate parabolic cross-diffusion systems is analyzed. The equations model the interaction of an arbitrary number of population species in a bounded domain with no-flux boundary…

Analysis of PDEs · Mathematics 2023-07-03 Xiuqing Chen , Ansgar Jüngel , Xi Lin , Ling Liu

A class of parabolic cross-diffusion systems modeling the interaction of an arbitrary number of population species is analyzed in a bounded domain with no-flux boundary conditions. The equations are formally derived from a random-walk…

Analysis of PDEs · Mathematics 2015-02-20 Nicola Zamponi , Ansgar Jüngel

Localisation limits and nonlocal approximations of degenerate parabolic systems have experienced a renaissance in recent years. However, only few results cover anisotropic systems. This work addresses this gap by establishing the…

Analysis of PDEs · Mathematics 2024-12-31 Tomasz Dębiec , Markus Schmidtchen

We consider a class of cross diffusion systems with degenerate (or porous media type) diffusion which is inspired by models in mathematical biology/ecology with zero self diffusions. Known techniques for scalar equations are no longer…

Analysis of PDEs · Mathematics 2019-09-12 Dung Le

In this work, we study a system of degenerate parabolic equations modeling the dynamics of multiple cell populations in intestinal crypts. The model describes cell division, differentiation, and migration through a strongly coupled system…

Analysis of PDEs · Mathematics 2026-03-02 Ahmad El Hajj , Mohamad El Hajj Chehade , Antoine Zurek

We investigate systems of degenerate parabolic equations idealizing reactive solute transport in porous media. Taking advantage of the inherent structure of the system that allows to deduce a scalar Generalized Porous Medium Equation for…

Analysis of PDEs · Mathematics 2014-12-19 Tuomo Kuusi , Léonard Monsaingeon , Juha Videman

In this paper we prove the existence of weak solutions to degenerate parabolic systems arising from the fully coupled moisture movement, solute transport of dissolved species and heat transfer through porous materials. Physically relevant…

Analysis of PDEs · Mathematics 2017-07-24 Michal Beneš , Igor Pažanin

A cross-diffusion system describing ion transport through biological membranes or nanopores in a bounded domain with mixed Dirichlet-Neumann boundary conditions is analyzed. The ion concentrations solve strongly coupled diffusion equations…

Analysis of PDEs · Mathematics 2017-06-23 Anita Gerstenmayer , Ansgar Jüngel

In this work we investigate a coupled system of degenerate and nonlinear partial differential equations governing the transport of reactive solutes in groundwater. We show that the system admits a unique weak solution provided the nonlinear…

Analysis of PDEs · Mathematics 2021-01-15 Margarida Baía , Farid Bozorgnia , Léonard Monsaingeon , Juha Videman

Two-scale homogenization limits of parabolic cross-diffusion systems in a heterogeneous medium with no-flux boundary conditions are proved. The heterogeneity of the medium is reflected in the diffusion coefficients or by the perforated…

Analysis of PDEs · Mathematics 2018-10-18 Ansgar Juengel , Mariya Ptashnyk

The existence of strong solutions to general class of strongly coupled parabolic systems will be discussed. These systems can be degenerate or singular as boundedness of theirs solutions are unavailable and not assummed. The results greatly…

Analysis of PDEs · Mathematics 2017-06-20 Dung Le

We prove global existence of a nonnegative weak solution to a degenerate parabolic system, which models the spreading of insoluble surfactant on a thin liquid film.

Analysis of PDEs · Mathematics 2010-07-26 Joachim Escher , Matthieu Hillairet , Philippe Laurencot , Christoph Walker

In this work we use functional methods to prove the boundedness and global existence of solutions for a class of strongly coupled parabolic systems. We apply the results to deduce the global existence of solutions for a classic…

Analysis of PDEs · Mathematics 2014-08-04 Said Kouachi , Kamuela E. Yong , Rana D. Parshad

In this work we study global well-posedness and large time behaviour for a typical reaction--diffusion system, which include degenerate diffusion, and whose non-linearities arise from chemical reactions. We show that there is an {\it…

Analysis of PDEs · Mathematics 2020-04-27 Amit Einav , Jeff Morgan , Bao Quoc Tang

We investigate a two-scale system featuring an upscaled parabolic dispersion-reaction equation intimately linked to a family of elliptic cell problems. The system is strongly coupled through a dispersion tensor, which depends on the…

Analysis of PDEs · Mathematics 2025-10-10 Vishnu Raveendran , Surendra Nepal , Rainey Lyons , Michael Eden , Adrian Muntean

We analyze the mathematical properties of a multi-species biofilm cross-diffusion model together with very general reaction terms and mixed Dirichlet-Neumann boundary conditions on a bounded domain. This model belongs to the class of…

Analysis of PDEs · Mathematics 2018-05-08 Esther S. Daus , Josipa-Pina Milišić , Nicola Zamponi
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