Tomás Gergelits

Publication Activity (10 Years)

Years Active: 2014-2022
Publications (10 Years): 7

Top Topics

Conjugate Gradient

Levenberg Marquardt

Laplacian Operator

Approximation Error

Top Venues

SIAM J. Numer. Anal.

Numer. Algorithms

Numer. Linear Algebra Appl.

Publications

Tomás Gergelits, Bjørn Fredrik Nielsen, Zdenek Strakos
Numerical approximation of the spectrum of self-adjoint operators in operator preconditioning. Numer. Algorithms 91 (1) (2022)
Erin C. Carson, Tomás Gergelits, Ichitaro Yamazaki
Mixed precision s-step Lanczos and conjugate gradient algorithms. Numer. Linear Algebra Appl. 29 (3) (2022)
Tomás Gergelits, Bjørn Fredrik Nielsen, Zdenek Strakos
Numerical approximation of the spectrum of self-adjoint continuously invertible operators. CoRR (2021)
Erin Carson, Tomás Gergelits
Mixed Precision s-step Lanczos and Conjugate Gradient Algorithms. CoRR (2021)
Tomás Gergelits, Bjørn Fredrik Nielsen, Zdenek Strakos
Generalized Spectrum of Second Order Differential Operators. SIAM J. Numer. Anal. 58 (4) (2020)
Tomás Gergelits, Kent-André Mardal, Bjørn Fredrik Nielsen, Zdenek Strakos
Laplacian Preconditioning of Elliptic PDEs: Localization of the Eigenvalues of the Discretized Operator. SIAM J. Numer. Anal. 57 (3) (2019)
Tomás Gergelits, Iveta Hnetynková, Marie Kubínová
Relating Computed and Exact Entities in Methods Based on Lanczos Tridiagonalization. HPCSE (2017)
Tomás Gergelits, Zdenek Strakos
Composite convergence bounds based on Chebyshev polynomials and finite precision conjugate gradient computations. Numer. Algorithms 65 (4) (2014)