Planck 2018 results-IV. Diffuse component separation Y Akrami, M Ashdown, J Aumont, C Baccigalupi, M Ballardini, AJ Banday, ...
Astronomy & Astrophysics 641, A4, 2020
379 2020 Approximate Gauss–Newton methods for nonlinear least squares problems S Gratton, AS Lawless, NK Nichols
SIAM Journal on Optimization 18 (1), 106-132, 2007
329 2007 Recursive trust-region methods for multiscale nonlinear optimization S Gratton, A Sartenaer, PL Toint
SIAM Journal on Optimization 19 (1), 414-444, 2008
259 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
225 2005 Direct search based on probabilistic descent S Gratton, CW Royer, LN Vicente, Z Zhang
SIAM Journal on Optimization 25 (3), 1515-1541, 2015
106 2015 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
101 2005 Flexible GMRES with deflated restarting L Giraud, S Gratton, X Pinel, X Vasseur
SIAM Journal on Scientific Computing 32 (4), 1858-1878, 2010
88 2010 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
86 2008 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
84 2014 A Levenberg–Marquardt method for large nonlinear least-squares problems with dynamic accuracy in functions and gradients S Bellavia, S Gratton, E Riccietti
Numerische Mathematik 140 (3), 791-825, 2018
78 2018 Complexity and global rates of trust-region methods based on probabilistic models S Gratton, CW Royer, LN Vicente, Z Zhang
IMA Journal of Numerical Analysis 38 (3), 1579-1597, 2018
77 2018 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
76 2011 On the condition number of linear least squares problems in a weighted Frobenius norm S Gratton
BIT Numerical Mathematics 36, 523-530, 1996
75 1996 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
73 2013 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
71 2011 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
70 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, 313-328, 2011
67 2011 A recursive -trust-region method for bound-constrained nonlinear optimization S Gratton, M Mouffe, PL Toint, M Weber-Mendonça
IMA Journal of Numerical Analysis 28 (4), 827-861, 2008
67 2008 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
64 1997 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
61 2005