activity
20062022
most citedBlock Locally Optimal Preconditioned Eigenvalue Xolvers (BLOPEX) in hypre and PETSc

86 citations · 532 across the 35 of their papers we have counts for

collaborators

37 papers

math.NA2022

Angle-free cluster robust Ritz value bounds for restarted block eigensolvers

Ming Zhou, Andrew V. Knyazev, Klaus Neymeyr

Convergence rates of block iterations for solving eigenvalue problems typically measure errors of Ritz values approximating eigenvalues. The errors of the Ritz values are commonly…

math.NA2022

Majorization-type cluster robust bounds for block filters and eigensolvers

M. Zhou, M. E. Argentati, A. V. Knyazev +1

Convergence analysis of block iterative solvers for Hermitian eigenvalue problems and the closely related research on properties of matrix-based signal filters are challenging, and…

math.NA2017

Recent implementations, applications, and extensions of the Locally Optimal Block Preconditioned Conjugate Gradient method (LOBPCG)

Andrew Knyazev

Since introduction [A. Knyazev, Toward the optimal preconditioned eigensolver: Locally optimal block preconditioned conjugate gradient method, SISC (2001) DOI:10.1137/S106482750036…

cs.MS2017★ 16 cited

Preconditioned Spectral Clustering for Stochastic Block Partition Streaming Graph Challenge

David Zhuzhunashvili, Andrew Knyazev

Locally Optimal Block Preconditioned Conjugate Gradient (LOBPCG) is demonstrated to efficiently solve eigenvalue problems for graph Laplacians that appear in spectral clustering. F…

cs.CV2017★ 1 cited

Signal reconstruction via operator guiding

Andrew Knyazev, Alexander Malyshev

Signal reconstruction from a sample using an orthogonal projector onto a guiding subspace is theoretically well justified, but may be difficult to practically implement. We propose…

math.OC2017

Preconditioned warm-started Newton-Krylov methods for MPC with discontinuous control

Andrew Knyazev, Alexander Malyshev

We present Newton-Krylov methods for efficient numerical solution of optimal control problems arising in model predictive control, where the optimal control is discontinuous. As in…