12–17 Jul 2026
University of Graz
Europe/Vienna timezone

Multiphase cross-diffusion models for tissue structures

MS42-07
13 Jul 2026, 17:40
20m
02.01 - HS (University of Graz)

02.01 - HS

University of Graz

116

Speaker

Cordula Reisch (Roskilde University)

Description

Motivated by a mechanical model of tumor encapsulation, we derive a generalized volume-filling cross-diffusion system for the components of tissue structures. The equations are formally derived from mass conservation laws and force balances in a multiphase approach. The model provides a general framework for studying tissue structures, and we show the analytical well-posedness of the system in general settings.
The existence of solutions is proven by using entropy methods, and the conditions for the existence of entropy structures are discussed from a modeling perspective.  Numerical simulations showcase the solution behavior beyond the entropy regime.

Author

Cordula Reisch (Roskilde University)

Co-authors

Ansgar Jügel (TU Wien) Sara Xhahysa (TU Wien)

Presentation materials

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