Publications
Book
- J. Koko, Calcul Scientifique avec Matlab, Ellipses
Technosup, 265p (2009).
Journal articles
- J. Koko, Parallel Uzawa method for large-scale minimization
of
partially separable functions, Journal
of Optimization Theory and Applications (to appear).
- R. Helfenstein and J. Koko, Parallel preconditioned
conjugate
gradient on GPU, Journal of
Computational and Applied Mathematics (to appear).
- J. Koko, Uzawa block relaxation method for a unilateral
contact
problem, Journal of Computational
and Applied Mathematics 235, 2343-2356 (2011)
- J. Koko and S. Jehan-Besson, An augmented Lagrangian method
for
TVg+L1-norm minimization, Journal
Mathematical Imaging and Vision 38, 182-196 (2010).
- J. Koko, Uzawa Block
Relaxation Domain Decomposition Method
for a Two-Body Frictionless Contact Problem, Applied
Mathematics Letters 22, 1534-1538 (2009).
- J. Koko and T. Virin,
Optimization of a Fertilizer Spreading
Process, Mathematics
and Computers in Simulation 79; 3099-3109 (2009).
- J. Koko, Uzawa block
relaxation domain decomposition method
for the two-body contact problem with Tresca friction, Computer Methods in Applied Mechanics and
Engineering, 198 (2008), 420-431.
- T. Virin, J. Koko, E. Piron,
P. Martinet and Berducat M.,
Optimization-based approach for a better centrifugal spreading, International Journal of Systems Science,
39 (2008), 913-924.
- J. Koko, Convergence analysis
of optimization-based domain
decomposition methods for a bonded structure, Applied Numerical Mathematics, 58
(2008), 69-87.
- J. Koko, Vectorized Matlab
codes for linear two-dimensional
elasticity, Scientific Programming,
15 (2007), 157-172.
- J. Koko, Lagrange
multiplier based decomposition
methods for a nonlinear sedimentary basin problem, Computational Geosciences, 11
(2007), 307-317.
- J. Koko, A Lagrange
multiplier decomposition method
for a nonlinear sedimentary basin problem, Mathematical and Computer Modelling,
45 (2007), 440-448.
- J. Koko and D. Bresch,
Operator-splitting and Lagrange
multiplier domain decomposition methods for numerical simulation of two
coupled Navier-Stokes fluids, International
Journal of Applied Mathematics and Computer Science, 16 (2006),
419-431.
- J. Koko, Uzawa conjugate
gradient domain decomposition
methods for two coupled Stokes flows, Journal
of Scientific Computing, 26 (2006), 195-215.
- D. Bresch and J. Koko, An
optimization-based domain
decomposition method for nonlinear wall laws in coupled systems, Mathematical Models and Methods in Applied
Sciences, 14 (2004), 1085-1101.
- J. Koko, Newton's iteration
with a conjugate gradient based
decomposition method for an elliptic PDE with a nonlinear boundary
condition, International Journal of
Applied Mathematics and Computer Science, 14 (2004),
13-18.
- J. Koko, An optimization
based domain decomposition method
for a two-body contact problem,
Numerical Functional Analysis and Optimization, 24 (2003),
587-605.
- J. Koko, An optimization
based domain decomposition method
for a bonded structure, Mathematical
Models and Methods in Applied Sciences, 12 (2002), 857-870.
- P. Béal, J. Koko and
R. Touzani, Mesh r-adaptation
for unilateral contact problems, International
Journal of Applied Mathematics and Computer Science, 12
(2002), 101-108.
- J. Koko, Modeling of textile
composites with warp/weft
frictional contact, Journal of
Engineering Mathematics, 38 (2000), 297-308.
- J. Koko, A conjugate gradient
method with a quasi-Newton
approximation, Applicationes
Mathematicae, 27 (2000), 153-165.
- F. Bendali, J. Koko and A.
Quilliot, The draping of fabrics
over arbitrary surfaces: an augmented Lagrangian method, Journal of the Textile Institute,
90 (1999), 177-186.
- J. Koko and A. Moukrim,
Parallel implementation of a
generalized conjugate gradient algorithm, Informatica, 9 (1998), 437-448.
- J. Koko, Semi-analytical
solutions for an orthotropic
cylindrical shell problem with prescribed radius, European Journal of Mechanics A/Solids,
17 (1998), 865-879.
- J. Koko, An orthotropic
cylindrical shell problem with
prescribed radius, Mathematical
Engineering in Industry, 7 (1998), 57-70.
- F. Bendali, J. Koko and A.
Quilliot,
Génération de surfaces 3D par pliage de surfaces planes
rectangulaires, RAIRO-APII Journal
Européen de Systèmes Automatisés, 31 (1997)
807-830.
- J. Koko and A. Quilliot,
Habillage de surfaces de
révolution, Modélisation
Mathématique et Analyse Numérique, 29 (1995),
765-778.
Proceedings papers
- M.K. Gdoura, J. Koko and T. Sassi, Domain decomposition
method for the Stokes problem with Tresca friction, DDM 19, Lecture Notes in Computational Science and
Engineering (to appear).
- J. Koko and T. Sassi, Uzawa domain decomposition methods for
the Stokes problem, Lecture
Notes in Computational Science and Engineering 78, 383-390
(2011).
- S. Jehan-Besson and J. Koko, Fast dual minimization of
weighted TV+L1-norm for salt and pepper noide removal, VISAPP (1),
68-75 (2010).
- M. Ayadi, M.K. Gdoura et T. Sassi, MEF mixte pour la
résolution du problème de Stokes avec des conditions aux
limites de type Tresca (8 pages, CD Rom), CMSM3, Hammamet (2009).
- J. Koko, Décomposition par dualisation d'un
problème non linéaire de bassin sédimentaire, ESAIM: Proceedings 20, pp. 149-156
(2007).
- T. Virin, J. Koko, E. Piron, Ph. Martinet and M.
Berducat, Spatial optimization of fertilizer application by centrifugal
spreading, STIC et
Environnement 2006, Narbonne, France (2006), pp. 258-265.
- T. Virin, J. Koko, E. Piron, Ph. Martinet and M.
Berducat, Application of Optimization Techniques for an Optimal
Fertilization by Centrifugal Spreading. IROS 2006: 4399-4404
- T. Virin, J. Koko, E. Piron and Ph. Martinet, On the use of
optimization methods for the minimization of fertilizer application
error with centrifugal spreader, ICINCO 2006 3rd Intelligent Control
Systems and Optimization, august 1-5, Setubal, Portugal (2006),
pp. 124-129.
- F. Guillen-Gonzalez and J. Koko, Numerical approximation for
a liquid crystal model with splitting in time scheme and augmented
Lagrangian method, Congresso de
Ecuaciones Diferenciales y Aplicaciones (CEDYA'2005),
183-188 (2005).
e-mail:
koko at isima.fr