Global solvability and boundedness to a attraction–repulsion model with logistic source

In this paper, we deal with an attraction–repulsion model with a logistic source as follows: $\{\begin{array}{cc}{u}_t=\mathrm{\Delta }u-\chi \mathrm{\nabla }\cdot (u\mathrm{\nabla }v)+\xi \mathrm{\nabla }\cdot (u\mathrm{\nabla }w)+\mu u^q(1-u)\hfill & \text{in }Q,\hfill \\ v_t=\mathrm{\Delta }v-{\alpha }_{1}v+{\beta }_{1}u\hfill & \text{in }Q,\hfill \\ w_t=\mathrm{\Delta }w-{\alpha }_{2}w+{\beta }_{2}u\hfill & \text{in }Q,\hfill \end{array}$ \(\begin{aligned} \textstyle\begin{cases} {u_{t}} = \Delta u - \chi \nabla \cdot (u \nabla v) + \xi \nabla \cdot (u \nabla w) + \mu {u^{q}}(1 - u) &\text{in } Q , \\ {v_{t}} = \Delta v - {\alpha _{1}}v + {\beta _{1}}u &\text{in } Q , \\ {w_{t}} = \Delta w - {\alpha _{2}}w + {\beta _{2}}u & \text{in } Q , \end{cases}\displaystyle \end{aligned}\) where $Q=\mathrm{\Omega }\times {\mathbb{R}}^{+}$ $Q = \Omega \times {\mathbb{R}^{+} }$ , $\mathrm{\Omega }\subset {\mathbb{R}}^3$ $\Omega \subset {\mathbb{R}^{3}}$ is a bounded domain. We mainly focus on the influence of logistic damping on the global solvability of this model. In dimension 2, q can be equal to 1 (Math. Methods Appl. Sci. 39(2):289–301, 2016). In dimension 3, we derive that the problem admits a global bounded solution when $q>\frac{8}{7}$ $q>\frac{8}{7}$ . In fact, we transfer the difficulty of estimation to the logistic term through iterative methods, thus, compared to the results in (J. Math. Anal. Appl. 2:448 2017; Z. Angew. Math. Phys. 73(2):1–25 2022) in dimension 3, our results do not require any restrictions on the coefficients.