activity
20162026
most citedHele-Shaw limit for a system of two reaction-(cross-)diffusion equations for living tissues

37 citations · 91 across the 23 of their papers we have counts for

collaborators

28 papers

math.AP2026

Incompressible limit for a two-species Brinkman model with drift

Tomasz Dębiec, Valentin Vincent Neumann, Markus Schmidtchen

We study a two-species model for tissue growth in which both populations are transported by an external drift and by a velocity potential determined through Brinkman's law. The pre…

math.AP2026

Convergence of a discrete-in-time Approximation to a Degenerate Parabolic-Hyperbolic System

Julia Hauser, Hideki Murakawa, Markus Schmidtchen

In this paper we consider an implicit semi-discrete approximation of a degenerate reaction-cross-diffusion system. Due to the symmetry in the parabolic part, this system is known t…

math.NA2025

Convergence of a finite volume scheme for a model for ants

Maria Bruna, Markus Schmidtchen, Oscar de Wit

We develop and analyse a finite volume scheme for a nonlocal active matter system known to exhibit a rich array of complex behaviours. The model under investigation was derived fro…

math.AP2024

Nonlocal approximation of an anisotropic cross-diffusion system

Tomasz Dębiec, Markus Schmidtchen

Localisation limits and nonlocal approximations of degenerate parabolic systems have experienced a renaissance in recent years. However, only few results cover anisotropic systems.…

math.AP2024

From Finite to Continuous Phenotypes in (Visco-)Elastic Tissue Growth Models

Tomasz Dębiec, Mainak Mandal, Markus Schmidtchen

In this study, we explore a mathematical model for tissue growth focusing on the interplay between multiple cell subpopulations with distinct phenotypic characteristics. The model…

math.AP2024

Existence of weak solutions for a volume-filling model of cell invasion into extracellular matrix

Rebecca M. Crossley, Jan-Frederik Pietschmann, Markus Schmidtchen

We study the existence of weak solutions for a model of cell invasion into the extracellular matrix (ECM), which consists of a non-linear partial differential equation for the dens…