Electronic Journal of Differential Equations, Vol. 2024 (2024), No. 75, pp. 1-28. Title: Solvability of an attraction-repulsion chemotaxis Navier-Stokes system with arbitrary porous medium diffusion Authors: Yadhavan Karuppusamy (National Institute of Tech, Goa, India) Shangerganesh Lingeshwaran (National Institute of Tech, Goa, India) Manimaran Jeyaraj (Vellore Institute of Tech, Tamil Nadu, India) Abstract: In this work, we proposed a model that describes the influence of two chemically opposed stimuli in the movement of species living in a fluid environment. We investigated the well-posedness of a system that models the attraction-repulsion chemotaxis Navier-Stokes system with nonlinear diffusion. We validate the existence of a global three-dimensional weak solution. Furthermore, with some restrictions on the nonlinear exponent and degradation coefficients of the chemical signal, we established the existence of a three-dimensional global bounded weak solutions for the system. Submitted May 24, 2024. Published November 25, 2024. Math Subject Classifications: 35Q30, 35K57, 35D30, 92C17. Key Words: Attraction-repulsion; chemotaxis; Navier-Stokes; weak solution.