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Title: Block Krylov Subspace Methods for Functions of Matrices II: Modified Block FOM

Journal Article · · SIAM Journal on Matrix Analysis and Applications
DOI:https://doi.org/10.1137/19m1255847· OSTI ID:1832747
 [1];  [2]; ORCiD logo [3]
  1. Univ. of Wuppertal (Germany)
  2. Charles Univ., Prague (Czech Republic)
  3. Temple Univ., Philadelphia, PA (United States)

We analyze an expansion of the generalized block Krylov subspace framework of [Electron. Trans. Numer. Anal., 47 (2017), pp. 100--126]. This expansion allows the use of low-rank modifications of the matrix projected onto the block Krylov subspace and contains, as special cases, the block GMRES method and the new block Radau--Arnoldi method. Within this general setting, we present results that extend the interpolation property from the nonblock case to a matrix polynomial interpolation property for the block case, and we relate the eigenvalues of the projected matrix to the latent roots of these matrix polynomials. Some error bounds for these modified block FOM methods for solving linear systems are presented. We then show how cospatial residuals can be preserved in the case of families of shifted linear block systems. This result is used to derive computationally practical restarted algorithms for block Krylov approximations that compute the action of a matrix function on a set of several vectors simultaneously. Finally, we prove some error bounds and present numerical results showing that two modifications of FOM, the block harmonic and the block Radau--Arnoldi methods for matrix functions, can significantly improve the convergence behavior.

Research Organization:
Temple Univ., Philadelphia, PA (United States)
Sponsoring Organization:
USDOE; National Science Foundation (NSF); Swiss National Science Foundation (SNSF); German Research Foundation (DFG)
Grant/Contract Number:
SC0016578
OSTI ID:
1832747
Journal Information:
SIAM Journal on Matrix Analysis and Applications, Vol. 41, Issue 2; ISSN 0895-4798
Publisher:
Society for Industrial and Applied Mathematics (SIAM)Copyright Statement
Country of Publication:
United States
Language:
English

References (33)

Computing $A^\alpha, \log(A)$, and Related Matrix Functions by Contour Integrals journal January 2008
Convergence properties of some block Krylov subspace methods for multiple linear systems journal November 2006
A Preconditioned and Shifted GMRES Algorithm for the PageRank Problem with Multiple Damping Factors journal January 2012
The block conjugate gradient algorithm and related methods journal February 1980
Many Masses on one Stroke: Economic Computation of Quark Propagators journal October 1995
Variational Iterative Methods for Nonsymmetric Systems of Linear Equations journal April 1983
Block Krylov Subspace Recycling for Shifted Systems with Unrelated Right-Hand Sides journal January 2016
Efficient and Stable Arnoldi Restarts for Matrix Functions Based on Quadrature journal January 2014
Convergence properties of block GMRES and matrix polynomials journal November 1996
The Algebraic Theory of Matrix Polynomials journal December 1976
A block GMRES method with deflated restarting for solving linear systems with multiple shifts and multiple right-hand sides: A shifted BGMRES method with deflated restarting journal January 2018
Global FOM and GMRES algorithms for matrix equations journal September 1999
Error Estimates and Evaluation of Matrix Functions via the Faber Transform journal January 2009
Multipreconditioned Gmres for Shifted Systems journal January 2017
Matrix Krylov subspace methods for linear systems with multiple right-hand sides journal October 2005
GMRES: A Generalized Minimal Residual Algorithm for Solving Nonsymmetric Linear Systems journal July 1986
Exponential integrators journal May 2010
On short recurrence Krylov type methods for linear systems with many right-hand sides journal July 2016
Low-Rank Updates of Matrix Functions journal January 2018
A Flexible Krylov Solver for Shifted Systems with Application to Oscillatory Hydraulic Tomography journal January 2013
On the global Krylov subspace methods for solving general coupled matrix equations journal December 2011
Analysis of Some Krylov Subspace Approximations to the Matrix Exponential Operator journal February 1992
On some properties of the extended block and global Arnoldi methods with applications to model reduction journal September 2016
Convergence of Restarted Krylov Subspace Methods for Stieltjes Functions of Matrices journal January 2014
Approximate solutions and eigenvalue bounds from Krylov subspaces journal March 1995
Field-of-values analysis of preconditioned iterative methods for nonsymmetric elliptic problems journal November 1997
Computing the Action of the Matrix Exponential, with an Application to Exponential Integrators journal January 2011
Numerical methods for the QCDd overlap operator. I. Sign-function and error bounds journal July 2002
Restarted GMRES for Shifted Linear Systems journal January 1998
Two polynomial methods of calculating functions of symmetric matrices journal January 1989
The Radau--Lanczos Method for Matrix Functions journal January 2017
Algorithms for Solvents of Matrix Polynomials journal June 1978
A new family of global methods for linear systems with multiple right-hand sides journal October 2011

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