20132020

Research output per year

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Research Output

2020

Preconditioners for Krylov subspace methods: an overview

Pearson, J. & Pestana, J., 30 Jun 2020, (Accepted/In press) In : GAMM-Mitteilungen / GAMM-Reports . 29 p.

Research output: Contribution to journalArticle

Subspace perturbation bounds with an application to angle of arrival estimation using the MUSIC algorithm

Delaosa, C., Pestana, J., Weiss, S. & Proudler, I., 26 Jun 2020, (Accepted/In press). 5 p.

Research output: Contribution to conferencePaper

Open Access
File
2019

Analysis of broadband GEVD-based blind source separation

Redif, S., Pestana, J. & Proudler, I. K., 17 Apr 2019, ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). Piscataway, NJ: IEEE, p. 8028-8032 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
1 Downloads (Pure)

Iterative approximation of analytic eigenvalues of a parahermitian matrix EVD

Weiss, S., Proudler, I. K., Coutts, F. K. & Pestana, J., 16 May 2019, p. 8038-8042. 5 p.

Research output: Contribution to conferencePaper

Open Access
File
4 Citations (Scopus)
28 Downloads (Pure)

Max-balanced Hungarian scalings

Hook, J., Pestana, J., Tisseur, F. & Hogg, J., 26 Feb 2019, In : SIAM Journal on Matrix Analysis and Applications. 40, 1, p. 320-346 27 p.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
7 Downloads (Pure)

Preconditioners for symmetrized Toeplitz and multilevel Toeplitz matrices

Pestana, J., 16 Jul 2019, In : SIAM Journal on Matrix Analysis and Applications. 40, 3, p. 870-887 18 p.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
18 Downloads (Pure)

Sample space-time covariance matrix estimation

Delaosa, C., Pestana, J., Goddard, N. J., Somasundaram, S. & Weiss, S., 16 May 2019, p. 8033-8037. 5 p.

Research output: Contribution to conferencePaper

Open Access
File
30 Downloads (Pure)

Support estimation of a sample space-time covariance matrix

Delaosa, C., Pestana, J., Goddard, N. J., Somasundaram, S. D. & Weiss, S., 1 Mar 2019, (Accepted/In press). 5 p.

Research output: Contribution to conferencePaper

Open Access
File
20 Downloads (Pure)
2018
Open Access
File
8 Citations (Scopus)
13 Downloads (Pure)

Enforcing eigenvector smoothness for a compact DFT-based polynomial eigenvalue decomposition

Coutts, F. K., Thompson, K., Pestana, J., Proudler, I. & Weiss, S., 8 Jul 2018, p. 1-5. 5 p.

Research output: Contribution to conferencePaper

Open Access
File
5 Citations (Scopus)
21 Downloads (Pure)

Fast multipole preconditioners for sparse matrices arising from elliptic equations

Ibeid, H., Yokota, R., Pestana, J. & Keyes, D., 31 Mar 2018, In : Computing and Visualization in Science. 18, 6, p. 213-229 17 p.

Research output: Contribution to journalArticle

Open Access
File
5 Citations (Scopus)
12 Downloads (Pure)

GMRES convergence bounds for eigenvalue problems

Freitag, M. A., Kürschner, P. & Pestana, J., 30 Apr 2018, In : Computational Methods in Applied Mathematics. 18, 2, p. 203-222 20 p.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
53 Downloads (Pure)

Impact of space-time covariance estimation errors on a parahermitian matrix EVD

Delaosa, C., Coutts, F. K., Pestana, J. & Weiss, S., 8 Jul 2018, p. 1-5. 5 p.

Research output: Contribution to conferencePaper

Open Access
File
2 Citations (Scopus)
41 Downloads (Pure)
Open Access
File
16 Citations (Scopus)
55 Downloads (Pure)

Preconditioning and iterative solution of all-at-once systems for evolutionary partial differential equations

McDonald, E., Pestana, J. & Wathen, A., 3 Apr 2018, In : SIAM Journal on Scientific Computing. 40, 2, p. A1012–A1033 22 p.

Research output: Contribution to journalArticle

Open Access
File
13 Citations (Scopus)
22 Downloads (Pure)

Refined saddle-point preconditioners for discretized Stokes problems

Pearson, J. W., Pestana, J. & Silvester, D. J., 1 Feb 2018, In : Numerische Mathematik. 138, 2, p. 331-363 33 p.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
34 Downloads (Pure)

Spectral properties of flipped Toeplitz matrices and related preconditioning

Mazza, M. & Pestana, J., 22 Nov 2018, (Accepted/In press) In : BIT Numerical Mathematics . 19 p.

Research output: Contribution to journalArticle

Open Access
File
2 Downloads (Pure)
2016

Efficient block preconditioning for a C1 finite element discretisation of the Dirichlet biharmonic problem

Pestana, J., Muddle, R., Heil, M., Tisseur, F. & Mihajlovic, M., 28 Jan 2016, In : SIAM Journal on Scientific Computing. 38, 1, p. A325-A345 21 p.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
55 Downloads (Pure)

Investigation of a polynomial matrix generalised EVD for multi-channel Wiener filtering

Corr, J., Pestana, J., Weiss, S., Redif, S. & Moonen, M., 19 Jul 2016, (Accepted/In press) 50th Asilomar Conference on Signals, Systems and Computers. IEEE

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Open Access
File
46 Downloads (Pure)

Null-space preconditioners for saddle point systems

Pestana, J. & Rees, T., 18 Aug 2016, In : SIAM Journal on Matrix Analysis and Applications. 37, 3, p. 1103-1128 26 p.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
38 Downloads (Pure)

Preconditioning for nonsymmetry and time-dependence

McDonald, E., Hon, S., Pestana, J. & Wathen, A., 14 Apr 2016, p. 1-11. 11 p.

Research output: Contribution to conferenceProceeding

Open Access
File
75 Downloads (Pure)
2015

A preconditioned MINRES method for nonsymmetric Toeplitz matrices

Pestana, J. & Wathen, A. J., 19 Mar 2015, In : SIAM Journal on Matrix Analysis and Applications. 36, 1, p. 273-288 16 p.

Research output: Contribution to journalArticle

Open Access
File
17 Citations (Scopus)
134 Downloads (Pure)

Block preconditioners for linear systems arising from multiscale collocation with compactly supported RBFs

Farrell, P. & Pestana, J., Aug 2015, In : Numerical Linear Algebra with Applications. 22, 4, p. 731-747 17 p.

Research output: Contribution to journalArticle

Open Access
File
6 Citations (Scopus)
55 Downloads (Pure)

Natural preconditioning and iterative methods for saddle point systems

Pestana, J. & Wathen, A. J., 2015, In : SIAM Review. 57, 1, p. 71–91 21 p.

Research output: Contribution to journalArticle

Open Access
File
33 Citations (Scopus)
130 Downloads (Pure)
2014

GMRES convergence bounds that depend on the right-hand-side vector

Titley-Peloquin, D., Pestana, J. & Wathen, A. J., 1 Apr 2014, In : IMA Journal of Numerical Analysis . 34, 2, p. 462-479 8 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)
Open Access
File
6 Citations (Scopus)
86 Downloads (Pure)

Right-hand side dependent bounds for GMRES applied to ill-posed problems

Pestana, J., 28 Nov 2014, System Modeling and Optimization: 26th IFIP TC 7 Conference, CSMO 2013, Klagenfurt, Austria, September 9-13, 2013, Revised Selected Papers. Pötzsche, C., Heuberger, C., Kaltenbacher, B. & Rendl, F. (eds.). Heidelberg: Springer-Verlag, p. 230-236 7 p. (IFIP Advances in Information and Communication Technology; vol. 443).

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Some observations on weighted GMRES

Guettel, S. & Pestana, J., Dec 2014, In : Numerical Algorithms. 67, 4, p. 733-752 21 p.

Research output: Contribution to journalArticle

Open Access
File
5 Citations (Scopus)
96 Downloads (Pure)

The antitriangular factorisation of saddle point matrices

Pestana, J. & Wathen, A., 1 Apr 2014, In : SIAM Journal on Matrix Analysis and Applications. 35, p. 339–353 15 p.

Research output: Contribution to journalArticle

Open Access
File
8 Citations (Scopus)
66 Downloads (Pure)
2013

Combination preconditioning of saddle point systems for positive definiteness

Pestana, J. & Wathen, A. J., 31 Oct 2013, In : Numerical Linear Algebra with Applications. 20, p. 785-808 24 p.

Research output: Contribution to journalArticle

Open Access
File
10 Citations (Scopus)
39 Downloads (Pure)

On the choice of preconditioner for minimum residual methods for non-Hermitian matrices

Wathen, A. J. & Pestana, J., 2013, In : Journal of Computational and Applied Mathematics. 249, p. 57-68 12 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)