Rectangular GLT sequences

The theory of generalized locally Toeplitz (GLT) sequences is a powerful apparatus for computing the asymptotic spectral distribution square matrices An arising from discretization differential problems. Indeed, as mesh fineness parameter n increases to ∞, sequence {An}n often turns out be GLT sequence. In this paper, motivated by recent applications, we further enhance developing full rectangular an extension classical sequences. We also provide two examples application illustration potential presented herein.