activity
20162026
most citedA rational QZ method

8 citations · 34 across the 25 of their papers we have counts for

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Showing 2025Show all

7 papers · 1 filter

math.NA2025

ParaSLRF: A High Performance Rational Filter Method for Solving Large Scale Eigenvalue Problems

Biyi Wang, Karl Meerbergen, Raf Vandebril +2

In \emph{Wang et al., A Shifted Laplace Rational Filter for Large-Scale Eigenvalue Problems}, the SLRF method was proposed to compute all eigenvalues of a symmetric definite genera…

math.NA2025

Krylov and core transformation algorithms for an inverse eigenvalue problem to compute recurrences of multiple orthogonal polynomials

Amin Faghih, Michele Rinelli, Marc Van Barel +2

In this paper, we develop algorithms for computing the recurrence coefficients corresponding to multiple orthogonal polynomials on the step-line. We reformulate the problem as an i…

math.NA2025

Manifold-valued function approximation from multiple tangent spaces

Hang Wang, Raf Vandebril, Joeri Van der Veken +1

Approximating a manifold-valued function from samples of input-output pairs consists of modeling the relationship between an input from a vector space and an output on a Riemannian…

math.NA2025

A shifted Laplace rational filter for large-scale eigenvalue problems

Biyi Wang, Karl Meerbergen, Raf Vandebril +2

We present a rational filter for computing all eigenvalues of a symmetric definite eigenvalue problem lying in an interval on the real axis. The linear systems arising from the fil…

math.NA2025

On computing the zeros of a class of Sobolev orthogonal polynomials

Nicola Mastronardi, Marc Van Barel, Raf Vandebril +1

A fast and weakly stable method for computing the zeros of a particular class of hypergeometric polynomials is presented. The studied hypergeometric polynomials satisfy a higher or…

math.NA2025

Constructing Sobolev orthonormal rational functions via an updating procedure

Amin Faghih, Marc Van Barel, Niel Van Buggenhout +1

In this paper, we generate the recursion coefficients for rational functions with prescribed poles that are orthonormal with respect to a continuous Sobolev inner product. Using a…

cs.DC2025

Algorithms for Parallel Shared-Memory Sparse Matrix-Vector Multiplication on Unstructured Matrices

Kobe Bergmans, Karl Meerbergen, Raf Vandebril

The sparse matrix-vector (SpMV) multiplication is an important computational kernel, but it is notoriously difficult to execute efficiently. This paper investigates algorithm perfo…