Clustering/Distribution Analysis and Preconditioned Krylov Solvers for the Approximated Helmholtz Equation and Fractional Laplacian in the Case of Complex-Valued, Unbounded Variable Coefficient Wave Number <i>μ</i>

Clustering/Distribution Analysis and Preconditioned Krylov Solvers for the Approximated Helmholtz Equation and Fractional Laplacian in the Case of Complex-Valued, Unbounded Variable Coefficient Wave Number <i>μ</i>

We consider the Helmholtz equation and the fractional Laplacian in the case of the complex-valued unbounded variable coefficient wave number <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>μ</mi></s...

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Bibliographic Details
Main Authors: Andrea Adriani, Stefano Serra-Capizzano, Cristina Tablino-Possio
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Algorithms
Subjects:
Caputo fractional derivatives
Helmholtz equations
eigenvalue asymptotic distribution
spectral symbol
clustering
Generalized Locally Toeplitz sequences
Online Access:https://www.mdpi.com/1999-4893/17/3/100

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