Abstract
In this paper, we study a chemotaxis system with signal-dependent motility, indirect signal production and generalized logistic source in a smooth bounded domain. By using a priori estimates, some important inequalities and the well-known standard Alikakos–Moser iteration, we establish the global existence of the solution for such kind of chemotaxis system. More precisely, we show that if \(l>\max \left\{ \frac{n}{2},1\right\} \), \(\lambda \in {\mathbb {R}}\), \(\mu >0\) and \(\delta >0\), then for all sufficiently smooth initial data the system
possesses a unique global-in-time solution. Moreover, the solution is shown to approach
in the large time limit under some extra hypotheses, where \(\lambda _+=\max \{\lambda ,0\}\).
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Acknowledgements
The authors of this paper would like to thank the reviewers for the inspiring comments and helpful suggestions. The work was completed when the first author was visiting Institut für Mathematik in Universität Paderborn during the summer of 2019. The author is grateful for the warm hospitality.
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Lv, W., Wang, Q. Global existence for a class of chemotaxis systems with signal-dependent motility, indirect signal production and generalized logistic source. Z. Angew. Math. Phys. 71, 53 (2020). https://doi.org/10.1007/s00033-020-1276-y
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DOI: https://doi.org/10.1007/s00033-020-1276-y