Pseudodifferential operators on mixed-norm Besov and Triebel-Lizorkin spaces

We prove boundedness of pseudodifferential operators on anisotropic mixed-norm Besov and Triebel-Lizorkin spaces. Our proof relies only on general maximal function estimates and provides a new perspective even in the case of spaces without mixed norms. Moreover, we cover the case of Fourier multipliers on the above mentioned spaces. As application we establish boundedness of pseudodifferential operators and Fourier multipliers on anisotropic mixed-norm Sobolev spaces.