A convergent GMRF approximation to Whittle-Matern fields on boundaryless Riemannian manifolds using DEC on well-centered simplicial complexes that is agnostic to alpha and kappa.
Recent implementations, applications, and extensions of the Locally Optimal Block Preconditioned Conjugate Gradient method (LOBPCG)
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abstract
Since introduction [A. Knyazev, Toward the optimal preconditioned eigensolver: Locally optimal block preconditioned conjugate gradient method, SISC (2001) DOI:10.1137/S1064827500366124] and efficient parallel implementation [A. Knyazev et al., Block locally optimal preconditioned eigenvalue xolvers (BLOPEX) in HYPRE and PETSc, SISC (2007) DOI:10.1137/060661624], LOBPCG has been used is a wide range of applications in mechanics, material sciences, and data sciences. We review its recent implementations and applications, as well as extensions of the local optimality idea beyond standard eigenvalue problems.
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2026 1verdicts
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Approximating Gaussian Whittle-Matern Fields over Well-Centered Triangulations of Riemannian Manifolds
A convergent GMRF approximation to Whittle-Matern fields on boundaryless Riemannian manifolds using DEC on well-centered simplicial complexes that is agnostic to alpha and kappa.