The results on the inversion of convolution operators as well as Toeplitz (and block Toeplitz) matrices in the 1-D (one-dimensional) case are classical and have numerous applications. We consider the ...
J.-C. Bourin and M. Uchiyam, A matrix subadditivity inequality for f(A+B) and f(A)+f(B), Linear Algebra Appl. 423 (2007) 512–518. I. H. Gumus, O. Hirzallah and F. Kittaneh, Norm inequalities involving ...