For the chemotaxis-Navier-Stokes system with porous medium diffusion, as m→∞ the solutions converge to a Hele-Shaw free boundary problem whose pressure satisfies the complementarity relation P∞(ΔP∞ − ∇·(χ(c∞)∇c∞))=0.
Convergence of Free Boundaries in the Incompressible Limit of Tumor Growth Models
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We investigate the general Porous Medium Equations with drift and source terms that model tumor growth. Incompressible limit of such models has been well-studied in the literature, where convergence of the density and pressure variables are established, while it remains unclear whether the free boundaries of the solutions exhibit convergence as well. In this paper, we provide an affirmative result by showing that the free boundaries converge in the Hausdorff distance in the incompressible limit. To achieve this, we quantify the relation between the free boundary motion and spatial average of the pressure, and establish a uniform-in-$m$ strict expansion property of the pressure supports. As a corollary, we derive upper bounds for the Hausdorff dimensions of the free boundaries and show that the limiting free boundary has finite $(d-1)$-dimensional Hausdorff measure.
citation-role summary
background 1
citation-polarity summary
fields
math.AP 1years
2025 1verdicts
CONDITIONAL 1roles
background 1polarities
unclear 1representative citing papers
citing papers explorer
-
Hele-Shaw limit of chemotaxis-Navier-Stokes flows
For the chemotaxis-Navier-Stokes system with porous medium diffusion, as m→∞ the solutions converge to a Hele-Shaw free boundary problem whose pressure satisfies the complementarity relation P∞(ΔP∞ − ∇·(χ(c∞)∇c∞))=0.