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arXiv · 2501.13216

On a linear DG approximation of chemotaxis models with damping gradient nonlinearities

Daniel Acosta-Soba·Alessandro Columbu·J. Rafael Rodríguez-Galván
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Abstract

In this work we present a novel linear and positivity preserving upwind discontinuous Galerkin (DG) approximation of a class of chemotaxis models with damping gradient nonlinearities. In particular, both a local and a nonlocal model including nonlinear diffusion, chemoattraction, chemorepulsion and logistic growth are considered. Some numerical experiments in the context of chemotactic collapse are presented, whose results are in accordance with the previous analysis of the approximation and show how the blow-up can be prevented by means of the damping gradient term.

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Daniel Acosta-Soba, Alessandro Columbu, J. Rafael Rodríguez-Galván. 2025-01-22. On a linear DG approximation of chemotaxis models with damping gradient nonlinearities. https://doi.org/10.1007/978-3-032-14789-9_1

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