Fast algebraic multigrid for block-structured dense systems arising from nonlocal diffusion problems

DOI10.1007/s10092-024-00612-1MaRDI QIDQ6622717

Stefano Serra Capizzano, Rongjun Cao, Minghua Chen

Publication date: 22 October 2024

Published in: Calcolo (Search for Journal in Brave)

zbMATH Keywords

fast Fourier transformalgebraic multigridnonlocal diffusion problemblock-structured dense systemToeplitz-like-plus-cross system

Mathematics Subject Classification ID

Multigrid methods; domain decomposition for boundary value problems involving PDEs (65N55) Spectral, collocation and related methods for boundary value problems involving PDEs (65N35) Eigenvalues, singular values, and eigenvectors (15A18) Numerical methods for discrete and fast Fourier transforms (65T50) Toeplitz, Cauchy, and related matrices (15B05)

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