Approximate Gauss–Newton methods for nonlinear least squares problems S Gratton, AS Lawless, NK Nichols
SIAM Journal on Optimization 18 (1), 106-132, 2007
235 2007 Recursive trust-region methods for multiscale nonlinear optimization S Gratton, A Sartenaer, PL Toint
SIAM Journal on Optimization 19 (1), 414-444, 2008
216 2008 Algorithm 842: A set of GMRES routines for real and complex arithmetics on high performance computers V Frayssé, L Giraud, S Gratton, J Langou
ACM Transactions on Mathematical Software (TOMS) 31 (2), 228-238, 2005
204 2005 Algorithm 842: A set of GMRES routines for real and complex arithmetics on high performance computers V Frayssé, L Giraud, S Gratton, J Langou
ACM Transactions on Mathematical Software (TOMS) 31 (2), 228-238, 2005
191 2005 Low Frequency Instrument beams and window functions P Collaboration IV
Astron. Astrophys 571, A4, 2014
100 2014 An investigation of incremental 4D‐Var using non‐tangent linear models AS Lawless, S Gratton, NK Nichols
Quarterly Journal of the Royal Meteorological Society: A journal of the …, 2005
88 2005 Limited‐memory preconditioners, with application to incremental four‐dimensional variational data assimilation J Tshimanga, S Gratton, AT Weaver, A Sartenaer
Quarterly Journal of the Royal Meteorological Society: A journal of the …, 2008
76 2008 Flexible GMRES with deflated restarting L Giraud, S Gratton, X Pinel, X Vasseur
SIAM Journal on Scientific Computing 32 (4), 1858-1878, 2010
72 2010 On the condition number of linear least squares problems in a weighted Frobenius norm S Gratton
BIT Numerical Mathematics 36 (3), 523-530, 1996
67 1996 Direct search based on probabilistic descent S Gratton, CW Royer, LN Vicente, Z Zhang
SIAM Journal on Optimization 25 (3), 1515-1541, 2015
66 2015 Planck Y Akrami, F Arroja, M Ashdown, J Aumont, C Baccigalupi, M Ballardini, ...
arXiv preprint arXiv:1807.06211, 2018
65 * 2018 B ‐preconditioned minimization algorithms for variational data assimilation with the dual formulationS Gürol, AT Weaver, AM Moore, A Piacentini, HG Arango, S Gratton
Quarterly Journal of the Royal Meteorological Society 140 (679), 539-556, 2014
64 2014 A recursive S Gratton, M Mouffe, PL Toint, M Weber-Mendonça
IMA Journal of Numerical Analysis 28 (4), 827-861, 2008
63 2008 An active-set trust-region method for derivative-free nonlinear bound-constrained optimization S Gratton, PL Toint, A Tröltzsch
Optimization Methods and Software 26 (4-5), 873-894, 2011
61 2011 A set of GMRES routines for real and complex arithmetics V Frayssé, L Giraud, S Gratton, J Langou
URL http://www. cerfacs. fr/algor/Softs/GMRES/index. html, 1997
61 1997 An improved two‐grid preconditioner for the solution of three‐dimensional Helmholtz problems in heterogeneous media H Calandra, S Gratton, X Pinel, X Vasseur
Numerical Linear Algebra with Applications 20 (4), 663-688, 2013
57 2013 Flexible variants of block restarted GMRES methods with application to geophysics H Calandra, S Gratton, J Langou, X Pinel, X Vasseur
SIAM Journal on Scientific Computing 34 (2), A714-A736, 2012
56 2012 GRACE-derived surface water mass anomalies by energy integral approach: application to continental hydrology G Ramillien, R Biancale, S Gratton, X Vasseur, S Bourgogne
Journal of Geodesy 85 (6), 313-328, 2011
54 2011 On a class of limited memory preconditioners for large scale linear systems with multiple right-hand sides S Gratton, A Sartenaer, J Tshimanga
SIAM Journal on Optimization 21 (3), 912-935, 2011
53 2011 Approximate iterative methods for variational data assimilation AS Lawless, S Gratton, NK Nichols
International journal for numerical methods in fluids 47 (10‐11), 1129-1135, 2005
53 2005 
Philippe TointProfessor (Emeritus) of Numerical OptimizationDirección de correo verificada de unamur.be
