On a linear DG approximation of chemotaxis models with damping gradient nonlinearities
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909044555382784 |
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| author | Acosta-Soba, Daniel Columbu, Alessandro Rodríguez-Galván, J. Rafael |
| author_facet | Acosta-Soba, Daniel Columbu, Alessandro Rodríguez-Galván, J. Rafael |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_13216 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On a linear DG approximation of chemotaxis models with damping gradient nonlinearities Acosta-Soba, Daniel Columbu, Alessandro Rodríguez-Galván, J. Rafael Numerical Analysis 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. |
| title | On a linear DG approximation of chemotaxis models with damping gradient nonlinearities |
| topic | Numerical Analysis |
| url | https://arxiv.org/abs/2501.13216 |