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.

• 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).