O love, could thou and I with fate conspire To grasp this sorry scheme of things entire, Might we not smash it to bits And mould it closer to our hearts' desire? -- Omar Khayyam, tr. Fitz Gerald

18.
**
Threshold solutions in the case of Mass-shift for the critical nonlinear Klein-Gordon equation
, **
with N. Masmoudi and K. Nakanishi: (To appear in Transactions of the AMS [pdf])

17.
**
Blow-up solutions of quasilinear hyperbolic equation with critical Sobolev exponent", **
with A. Lyaghfouri.Mathematical Modelling of Natural Phenomena, V. 7, issue 02, pp. 66-76, 2012.
16.
**
Existence of a ground state and blow-up for a nonlinear Schroedinger equation with critical growth, ** with T. Akahori, H. Kikuchi and H. Nawa (To appear in Diff. and Integral Equa. Preprint [pdf])

15.
**
Strichartz type estimates and the wellposedness of an energy critical 2D wave equation in a bounded domain
**, with R. Jrad (Journal of Diff. Equa., Vol 250, N 9, 3740-3771, 2011. Preprint available in ArXiv).

14.
** Well and Ill-posedness issues for energy supercritical**. (To appear in Analysis \& PDE. Preprint available in: ArXiv)

13.
**
Scattering threshold for the focusing nonlinear Klein-Gordon equation, with N. Masmoudi and K. Nakanishi. ** (To appear in Analysis & PDE. Preprint available in: ArXiv)

12.
**
Exponential Energy Decay for Damped Klein-Gordon Equation with Nonlinearities of Arbitrary Growth ** with L. Aloui and K. Nakanishi. (. Preprint available in ArXiv). Preprint available in: ArXiv ).

11.
**Scattering for the two dimensional energy-critical nonlinear wave equations**, with M. Majdoub, N. Masmoudi and K. Nakanishi. Duke Math. Journal, Vol. 152, N 2, 287-329. Preprint available in: ArXiv

10.
** Instability of super-critical waves: Theory and computation **, with P. Guyenne, Journal Mathematics and Computers in Simulation on Nonlinear Waves: Computation and Theory 80 (2009) 2-9. Preprint [pdf] .

9.
**Energy critical NLS in two space dimensions**, with J. Colliander, M. Majdoub and N. Masmoudi. Journal of Hyperbolic Diff. Equa. V. 6, Issue: 3(2009) pp. 549-575. Preprint available in: ArXiv.

8.
**Ill-posedness of $H^1$-supercritical waves**, with M. Majdoub and N. Masmoudi. C. R. Math. Acad. Sci. Paris 345 (2007), no. 3, 133--138. Preprint [pdf]

7.
** On the Local Solvability for a Quasilinear Cubic Wave Equation **, with J.
Azzouz, Hokkaido Math. J. 36 (2007), no. 2, 383--416. Preprint [pdf]

6.
** Global Wellposedness for a 2D Semi-Linear Klein-Gordon Equation**, with M. Majdoub and N. Masmoudi, Communications on Pure and Applied Math 59 (2006), no. 11, 1639--1658 (Access required). Preprint [pdf]

5.
**A Double Logarithmic Inequality with a Sharp Constant**, with M. Majdoub and N. Masmoudi, Proc. Amer. Math. Soc. 135 (2007), no. 1, 87--97. Preprint [pdf]

4.
**Geometric-Optics for Nonlinear Concentrating Waves in Focusing and Non-Focusing Two Geometries**, Commun. Contemp. Math. 6 (2004), No 1, 1-23(Access required). Preprint [pdf]

3.
**Comparaison Des Ondes Lin\'eaires et Non-lin\'eaires \`a Coefficients Variables**, with M. Majdoub, Bull. Soc. Math. Belgique 10 (2003) No 2, 299-312 (Access required). Preprint [pdf]

2.
**Existence, en Grand Temps, de Solutions pour l'\'Equation des Ondes Semi-Lin\'eaire Critique \`a Coefficients Variables**, with M. Majdoub, Bull. Soc. Math. France 131 (2003) No 1, 1-22 (Access required). Preprint [pdf]

1.
**Existence Globale de Solutions pour l'\'Equation des Ondes Semi-Lin\'eaire Critique \`a Coefficients Variables**, with M. Majdoub, Comptes- Rendus de l'Acad\'emie des Sciences de Paris (1999), S\'erie I Vol. No 328, 579-584 (Access required). Preprint [pdf]

5.
**
Global small solutions for the Navier-Stokes-Maxwell system**, with S. Keraani (SIAM J. Math. Anal. vol 43, N 5, pp. 2275-2295. Preprint available in ArXiv).

4.
** Construction of suitable weak solutions of the Navier-Stokes equations**, with A. Biryuk and W. Craig, Stochastic analysis and partial differential equations, 1--18, Contemp. Math., 429, Amer. Math. Soc., Providence, RI, 2007. Preprint [pdf]

3.
** Asymptotic Study of a Magneto-Hydro-Dynamic System**, with J. B. Ameur and M. Majdoub, Differential and Integral Equations, 18 (2005), no. 3, 299--324 (Access required). Preprint [pdf]

2.
** Existence et Unicit\'e pour le Syst\`eme de Navier-Stokes Axisym\'etrique**, with I. Gallagher and M. Majdoub, Comm. Partial Differential Equations (2002), 26, No 5-6, 883-907 (Access required). Preprint [pdf]

1.
**Solutions Axisym\'etriques des \'Equations de Navier-Stokes**, with I. Gallagher and M. Majdoub, Comptes- Rendus de l'Acad\'emie des Sciences de Paris (2000), S\'erie I Vol. No 330,, 791-794 (Access required). Preprint [pdf]