Matrix weighted modulation spaces

Given a matrix-weight W in the Muckenhoupt class Aₚ(Rⁿ), 1≤ p<∞, we introduce corresponding vector-valued continuous and discrete α-modulation spaces Ms,αp,q(W) and ms,αp,q(W) and prove their equivalence through the use of adapted tight frames. Compatible notions of molecules and almost diagonal matrices are also introduced, and an application to the study of pseudo-differential operators on vector valued spaces is given.