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Research Output

2020

Krylov Methods for Low-Rank Regularization

Gazzola, S., Meng, C. & Nagy, J. G., 3 Apr 2020, (Accepted/In press) In : SIAM Journal On Matrix Analysis and Applications (SIMAX).

Research output: Contribution to journalArticle

Open Access
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9 Downloads (Pure)
2019

Arnoldi decomposition, GMRES, and preconditioning for linear discrete ill-posed problems

Gazzola, S., Noschese, S., Novati, P. & Reichel, L., 1 Aug 2019, In : Applied Numerical Mathematics. 142, p. 102-121 20 p.

Research output: Contribution to journalArticle

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

Flexible GMRES for Total Variation regularization

Gazzola, S. & Sabate Landman, M., 1 Sep 2019, In : BIT Numerical Mathematics. 59, 3, p. 721-746 26 p.

Research output: Contribution to journalArticle

Open Access

Flexible Krylov Methods for Lp regularization

Chung, J. & Gazzola, S., 29 Oct 2019, In : SIAM Journal on Scientific Computing. 41, 5, p. S149-S171 23 p.

Research output: Contribution to journalArticle

Open Access
File
19 Downloads (Pure)

IR Tools: a MATLAB package of iterative regularization methods and large-scale test problems

Gazzola, S., Hansen, P. C. & Nagy, J. G., 1 Jul 2019, In : Numerical Algorithms. 81, 3, p. 773-811 39 p.

Research output: Contribution to journalArticle

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

Some transpose-free CG-like solvers for nonsymmetric ill-posed problems

Gazzola, S. & Novati, P., 31 Dec 2019, In : Journal of Numerical Mathematics.

Research output: Contribution to journalArticle

2017

Convex optimisation for partial volume estimation in compressive quantitative MRI

Duarte, R., Chen, Z., Gazzola, S., Marshall, I., Davies, M. & Wiaux, Y., 28 Apr 2017, (Accepted/In press).

Research output: Contribution to conferenceAbstract

Fast nonnegative least squares through flexible Krylov subspaces

Gazzola, S. & Wiaux, Y., 27 Apr 2017, In : SIAM Journal on Scientific Computing. 39, 2, p. A655–A679 25 p.

Research output: Contribution to journalArticle

Open Access
File
3 Citations (Scopus)
126 Downloads (Pure)
2016

A new framework for multi-parameter regularization

Gazzola, S. & Reichel, L., 1 Sep 2016, In : BIT Numerical Mathematics. 56, 3, p. 919-949 31 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Image reconstruction and restoration using the simplified topological ε-algorithm

Gazzola, S. & Karapiperi, A., 1 Feb 2016, In : Applied Mathematics and Computation. 274, p. 539-555 17 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Inheritance of the discrete Picard condition in Krylov subspace methods

Gazzola, S. & Novati, P., Sep 2016, In : BIT Numerical Mathematics. 56, 3, p. 893-918

Research output: Contribution to journalArticle

4 Citations (Scopus)

On the Lanczos and Golub-Kahan reduction methods applied to discrete ill-posed problems

Gazzola, S., Onunwor, E., Reichel, L. & Rodriguez, G., 2016, In : Numerical Linear Algebra with Applications. 23, 1, p. 187-204 18 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2015

On Krylov projection methods and Tikhonov regularization

Gazzola, S., Novati, P. & Russo, M. R., 2015, In : Electronic Transactions on Numerical Analysis. 44, p. 83-123 41 p.

Research output: Contribution to journalArticle

42 Citations (Scopus)
2014

Automatic parameter setting for Arnoldi-Tikhonov methods

Gazzola, S. & Novati, P., 2014, In : Journal of Computational and Applied Mathematics. 256, p. 180-195 16 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)

Embedded techniques for choosing the parameter in Tikhonov regularization

Gazzola, S., Novati, P. & Russo, M. R., 1 Dec 2014, In : Numerical Linear Algebra with Applications. 21, 6, p. 796-812 17 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Generalized Arnoldi-Tikhonov method for sparse reconstruction

Gazzola, S. & Nagy, J. G., 31 Dec 2014, In : SIAM Journal on Scientific Computing. 36, 2, p. B225-B247 23 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)
2013

Multi-parameter Arnoldi-Tikhonov methods

Gazzola, S. & Novati, P., 2013, In : Electronic Transactions on Numerical Analysis. 40, p. 452-475 24 p.

Research output: Contribution to journalArticle

Open Access
9 Citations (Scopus)
2012

Energetic boundary element method analysis of wave propagation in 2D multilayered media

Aimi, A., Gazzola, S. & Guardasoni, C., 15 Jul 2012, In : Mathematical Methods in the Applied Sciences. 35, 10, p. 1140-1160 21 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2011

Energetic BEM for domain decomposition in 2D wave propagation problems

Aimi, A., Gazzola, S. & Guardasoni, C., 19 Aug 2011, In : Communications in Applied and Industrial Mathematics.

Research output: Contribution to journalArticle

Open Access