“…Applying the Desjardins interpolation inequality, Liu and Zhong [17] investigated the global existence and exponential decay of strong solution to the 2D initial boundary value problem with general large data and vacuum. There are also other interesting studies on the nonhomogeneous micropolar fluid equations, such as the vanishing viscosity problem [3,7], error estimates for spectral semi-Galerkin approximations [11], the local existence of semi-strong solutions [4], and strong solutions in thin domains [5]. Recently, by spatial-weighted energy method, Zhong [26] proved the local existence of strong solutions to the Cauchy problem of (1.2) in R 2 .…”