4 papers
Block preconditioning for all-at-once variable-coefficient fractional evolution equations via the GLT analysis
Muhammad Faisal Khan, Stefano Serra-Capizzano
We study a class of nonlocal evolutionary partial differential equations with weakly singular temporal kernel and spatially variable diffusion coefficient. The model is posed on $Ω…
Spectral theory of matrix-sequences: perspectives of the GLT analysis and beyond
Stefano Serra-Capizzano
In recent years there has been a growing attention on distribution results in the sense of Weyl for the collective behavior of eigenvalues and singular values of matrix-sequences.…
Geometric means of HPD GLT matrix-sequences: a maximal result beyond invertibility assumptions on the GLT symbols
Asiim Ilyas, Muhammad Faisal Khan, Valerio Loi +1
In the current work, we consider the study of the spectral distribution of the geometric mean matrix-sequence of two matrix-sequences formed by Hermitian Positi…
GLT hidden structures in mean-field quantum spin systems
Christiaan J. F. van de Ven, Muhammad Faisal Khan, S. Serra-Capizzano
This work explores structured matrix sequences arising in mean-field quantum spin systems. We express these sequences within the framework of generalized locally Toeplitz (GLT) …